TRẦN NGỌC KHÁNH NHƯ: C8

Hiển thị các bài đăng có nhãn C8. Hiển thị tất cả bài đăng

Bài 1. Điểm. Đường thẳng

<p> </p><br />Giải bài 1 trang 86 sách bài tập Toán 6 - Chân trời sáng tạo Tập 2<div class="detail_new" style="background-color: white; font-family: OpenSans, Tahoma, Helvetica, sans-serif; font-size: 16px; line-height: 26px; margin: 0px; padding: 0px 5px; word-break: break-word;"><div class="center bottom10" style="margin-bottom: 10px !important; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding: 0px; text-align: center;"><ins class="982a9496" data-key="032300ccaf074f044010600ff650587e" style="margin: 0px; padding: 0px;"></ins></div><div class="post-toc" id="post-toc-container" style="margin: 0px; padding: 0px;"></div><div id="box-content" style="font-size: 18px; line-height: 26px; margin: 0px; padding: 0px; text-align: justify;"><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><strong class="content_question" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Đề bài</strong></p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">a) Em hãy nêu cách kí hiệu của điểm và đường thẳng</p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">b) Trong các chữ cái A, a, B, b, C, c những chữ cái nào dùng để kí hiệu điểm, những chữ cái nào dùng để kí hiệu đường thẳng?</p><div class="content_method_container" style="line-height: 26px; margin: 0px; padding: 10px 0px 2px;"><p class="content_method_header" style="background: rgb(252, 241, 196); border-radius: 5px; cursor: pointer; line-height: 26px; margin: 0px; padding: 10px; text-align: center; word-break: normal;"><strong class="content_method" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Phương pháp giải - Xem chi tiết</strong><img class="method-open-icon" id="method_colapse_icon" src="data:image/png;base64,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" style="float: right; height: auto; margin: 0px; max-height: 100%; max-width: 100%; padding: 0px; position: relative; top: 10px;" /></p><div class="content_method_content" style="border-bottom: 1px dashed rgb(234, 214, 126); border-image: initial; border-left: 1px dashed rgb(234, 214, 126); border-right: 1px dashed rgb(234, 214, 126); border-top: none; line-height: 26px; margin: 0px 0px 10px; padding: 10px 10px 5px;"><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Nhắc lại lý thuyết về cách kí hiệu đường thẳng</p></div></div><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><strong class="content_detail" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Lời giải chi tiết</strong></p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">a) Người ta dùng các chữ cái in hoa (A, B, C, ..)  để kí hiệu cho điểm, các chữ cái in thường (a, b, c, …) để kí hiệu cho đường thẳng.</p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">b) Những chữ cái dùng để kí hiệu điểm: A, B, C</p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Những chữ cái dùng để kí hiệu đường thẳng: a, b, c, …</p></div></div>Giải bài 2 trang 86 sách bài tập Toán 6 - Chân trời sáng tạo Tập 2<div class="detail_new" style="background-color: white; font-family: OpenSans, Tahoma, Helvetica, sans-serif; font-size: 16px; line-height: 26px; margin: 0px; padding: 0px 5px; word-break: break-word;"><div class="center bottom10" style="margin-bottom: 10px !important; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding: 0px; text-align: center;"><ins class="982a9496" data-key="032300ccaf074f044010600ff650587e" style="margin: 0px; padding: 0px;"></ins></div><div class="post-toc" id="post-toc-container" style="margin: 0px; padding: 0px;"></div><div id="box-content" style="font-size: 18px; line-height: 26px; margin: 0px; padding: 0px; text-align: justify;"><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><strong class="content_question" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Đề bài</strong></p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">a) Hãy gọi tên đường thẳng trong Hình 1, Hình 2.</p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">b) Dùng các kí hiệu để đặt tên cho đường thẳng trong Hình 3 bằng hai cách</p><div class="content_method_container" style="line-height: 26px; margin: 0px; padding: 10px 0px 2px;"><p class="content_method_header" style="background: rgb(252, 241, 196); border-radius: 5px; cursor: pointer; line-height: 26px; margin: 0px; padding: 10px; text-align: center; word-break: normal;"><strong class="content_method" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Phương pháp giải - Xem chi tiết</strong><img class="method-open-icon" id="method_colapse_icon" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAAGCAYAAAD68A/GAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAA2ZpVFh0WE1MOmNvbS5hZG9iZS54bXAAAAAAADw/eHBhY2tldCBiZWdpbj0i77u/IiBpZD0iVzVNME1wQ2VoaUh6cmVTek5UY3prYzlkIj8+IDx4OnhtcG1ldGEgeG1sbnM6eD0iYWRvYmU6bnM6bWV0YS8iIHg6eG1wdGs9IkFkb2JlIFhNUCBDb3JlIDUuMy1jMDExIDY2LjE0NTY2MSwgMjAxMi8wMi8wNi0xNDo1NjoyNyAgICAgICAgIj4gPHJkZjpSREYgeG1sbnM6cmRmPSJodHRwOi8vd3d3LnczLm9yZy8xOTk5LzAyLzIyLXJkZi1zeW50YXgtbnMjIj4gPHJkZjpEZXNjcmlwdGlvbiByZGY6YWJvdXQ9IiIgeG1sbnM6eG1wTU09Imh0dHA6Ly9ucy5hZG9iZS5jb20veGFwLzEuMC9tbS8iIHhtbG5zOnN0UmVmPSJodHRwOi8vbnMuYWRvYmUuY29tL3hhcC8xLjAvc1R5cGUvUmVzb3VyY2VSZWYjIiB4bWxuczp4bXA9Imh0dHA6Ly9ucy5hZG9iZS5jb20veGFwLzEuMC8iIHhtcE1NOk9yaWdpbmFsRG9jdW1lbnRJRD0ieG1wLmRpZDoxM0UzREU1OEVDMzZFODExQkQ5N0VEMEYzMTQyQzg0NSIgeG1wTU06RG9jdW1lbnRJRD0ieG1wLmRpZDo5NTFEMTQyQTM3QUExMUU4OTg2OUQ0MzRDMEZGNkVBQiIgeG1wTU06SW5zdGFuY2VJRD0ieG1wLmlpZDo5NTFEMTQyOTM3QUExMUU4OTg2OUQ0MzRDMEZGNkVBQiIgeG1wOkNyZWF0b3JUb29sPSJBZG9iZSBQaG90b3Nob3AgQ1M2IChXaW5kb3dzKSI+IDx4bXBNTTpEZXJpdmVkRnJvbSBzdFJlZjppbnN0YW5jZUlEPSJ4bXAuaWlkOjEzRTNERTU4RUMzNkU4MTFCRDk3RUQwRjMxNDJDODQ1IiBzdFJlZjpkb2N1bWVudElEPSJ4bXAuZGlkOjEzRTNERTU4RUMzNkU4MTFCRDk3RUQwRjMxNDJDODQ1Ii8+IDwvcmRmOkRlc2NyaXB0aW9uPiA8L3JkZjpSREY+IDwveDp4bXBtZXRhPiA8P3hwYWNrZXQgZW5kPSJyIj8+eFCcKwAAAHdJREFUeNpiDA0NvcXAwDAbiLsZsINSIE5lAhIbgbgLiLOxKMqGym1iARJlQCwAxJOB+AsQL4QqioeKzQWZClL4H4gzgJgbKvgVqhDEXgnE6SA1LFDBv1ATQIqXQsW2QsVAcgwsSO75DcShIPdA+WFA/AsmCRBgAO7AGQt+AUtuAAAAAElFTkSuQmCC" style="float: right; height: auto; margin: 0px; max-height: 100%; max-width: 100%; padding: 0px; position: relative; top: 10px;" /></p><div class="content_method_content" style="border-bottom: 1px dashed rgb(234, 214, 126); border-image: initial; border-left: 1px dashed rgb(234, 214, 126); border-right: 1px dashed rgb(234, 214, 126); border-top: none; line-height: 26px; margin: 0px 0px 10px; padding: 10px 10px 5px;"><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Đường thẳng có thể được đặt tên bởi các chữ cái in thường hoặc hai điểm bất kì thuộc đường thẳng đó.</p></div></div><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><strong class="content_detail" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Lời giải chi tiết</strong></p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">a) Hình 1: đường thẳng AB</p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Hình 2: đường thẳng k</p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">b) có thể dùng các chữ cái in thường hoặc hai chữ cái in hoa để kí hiệu đường thẳng trong hình 3, như sau:</p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Cách 1: đường thẳng d</p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Cách 2: Đường thẳng MN ( M, N là hai điểm phân biệt bất kì thuộc đường thẳng ở hình 3)</p></div></div>Giải bài 3 trang 86 sách bài tập Toán 6 - Chân trời sáng tạo Tập 2<div class="detail_new" style="background-color: white; font-family: OpenSans, Tahoma, Helvetica, sans-serif; font-size: 16px; line-height: 26px; margin: 0px; padding: 0px 5px; word-break: break-word;"><div class="center bottom10" style="margin-bottom: 10px !important; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding: 0px; text-align: center;"><ins class="982a9496" data-key="032300ccaf074f044010600ff650587e" style="margin: 0px; padding: 0px;"></ins></div><div class="post-toc" id="post-toc-container" style="margin: 0px; padding: 0px;"></div><div id="box-content" style="font-size: 18px; line-height: 26px; margin: 0px; padding: 0px; text-align: justify;"><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><strong class="content_question" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Đề bài</strong></p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Quan sát hình vẽ dưới đây, hãy sử dụng các kí hiệu <span class="mjx-chtml MathJax_CHTML" data-mathml="<math xmlns="http://www.w3.org/1998/Math/MathML"><mo>&#x2208;</mo><mo>,</mo><mo>&#x2209;</mo></math>" id="MathJax-Element-1-Frame" role="presentation" style="border: 0px; direction: ltr; display: inline-block; float: none; font-size: 21.78px; line-height: 0; margin: 0px; max-height: none; max-width: none; min-height: 0px; min-width: 0px; overflow-wrap: normal; padding: 1px 0px; position: relative; text-align: left; white-space: nowrap; word-spacing: normal;" tabindex="0"><span aria-hidden="true" class="mjx-math" id="MJXc-Node-1" style="border-collapse: separate; border-spacing: 0px; display: inline-block; margin: 0px; padding: 0px;"><span class="mjx-mrow" id="MJXc-Node-2" style="box-sizing: content-box !important; display: inline-block; margin: 0px; padding: 0px;"><span class="mjx-mo" id="MJXc-Node-3" style="box-sizing: content-box !important; display: inline-block; margin: 0px; padding: 0px;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: 0px; padding: 0.232em 0px 0.37em; white-space: pre;">∈</span></span><span class="mjx-mo" id="MJXc-Node-4" style="box-sizing: content-box !important; display: inline-block; margin: 0px; padding: 0px;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: -0.181em 0px 0px; padding: 0px 0px 0.553em; white-space: pre;">,</span></span><span class="mjx-mo MJXc-space1" id="MJXc-Node-5" style="box-sizing: content-box !important; display: inline-block; margin: 0px 0px 0px 0.167em; padding: 0px;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: 0px; padding: 0.416em 0px 0.553em; white-space: pre;">∉</span></span></span></span><span class="MJX_Assistive_MathML" role="presentation" style="border: 0px !important; clip: rect(1px, 1px, 1px, 1px); display: block !important; height: 1px !important; left: 0px; margin: 0px; overflow: hidden !important; padding: 1px 0px 0px !important; position: absolute !important; top: 0px; user-select: none; width: 1px !important;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mo>∈</mo><mo>,</mo><mo>∉</mo></math></span></span> thích hợp để điền vào chỗ chấm.</p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">A … d;</p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">B … d;</p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">C … d.</p><div class="content_method_container" style="line-height: 26px; margin: 0px; padding: 10px 0px 2px;"><p class="content_method_header" style="background: rgb(252, 241, 196); border-radius: 5px; cursor: pointer; line-height: 26px; margin: 0px; padding: 10px; text-align: center; word-break: normal;"><strong class="content_method" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Phương pháp giải - Xem chi tiết</strong><img class="method-open-icon" id="method_colapse_icon" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAAGCAYAAAD68A/GAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAA2ZpVFh0WE1MOmNvbS5hZG9iZS54bXAAAAAAADw/eHBhY2tldCBiZWdpbj0i77u/IiBpZD0iVzVNME1wQ2VoaUh6cmVTek5UY3prYzlkIj8+IDx4OnhtcG1ldGEgeG1sbnM6eD0iYWRvYmU6bnM6bWV0YS8iIHg6eG1wdGs9IkFkb2JlIFhNUCBDb3JlIDUuMy1jMDExIDY2LjE0NTY2MSwgMjAxMi8wMi8wNi0xNDo1NjoyNyAgICAgICAgIj4gPHJkZjpSREYgeG1sbnM6cmRmPSJodHRwOi8vd3d3LnczLm9yZy8xOTk5LzAyLzIyLXJkZi1zeW50YXgtbnMjIj4gPHJkZjpEZXNjcmlwdGlvbiByZGY6YWJvdXQ9IiIgeG1sbnM6eG1wTU09Imh0dHA6Ly9ucy5hZG9iZS5jb20veGFwLzEuMC9tbS8iIHhtbG5zOnN0UmVmPSJodHRwOi8vbnMuYWRvYmUuY29tL3hhcC8xLjAvc1R5cGUvUmVzb3VyY2VSZWYjIiB4bWxuczp4bXA9Imh0dHA6Ly9ucy5hZG9iZS5jb20veGFwLzEuMC8iIHhtcE1NOk9yaWdpbmFsRG9jdW1lbnRJRD0ieG1wLmRpZDoxM0UzREU1OEVDMzZFODExQkQ5N0VEMEYzMTQyQzg0NSIgeG1wTU06RG9jdW1lbnRJRD0ieG1wLmRpZDo5NTFEMTQyQTM3QUExMUU4OTg2OUQ0MzRDMEZGNkVBQiIgeG1wTU06SW5zdGFuY2VJRD0ieG1wLmlpZDo5NTFEMTQyOTM3QUExMUU4OTg2OUQ0MzRDMEZGNkVBQiIgeG1wOkNyZWF0b3JUb29sPSJBZG9iZSBQaG90b3Nob3AgQ1M2IChXaW5kb3dzKSI+IDx4bXBNTTpEZXJpdmVkRnJvbSBzdFJlZjppbnN0YW5jZUlEPSJ4bXAuaWlkOjEzRTNERTU4RUMzNkU4MTFCRDk3RUQwRjMxNDJDODQ1IiBzdFJlZjpkb2N1bWVudElEPSJ4bXAuZGlkOjEzRTNERTU4RUMzNkU4MTFCRDk3RUQwRjMxNDJDODQ1Ii8+IDwvcmRmOkRlc2NyaXB0aW9uPiA8L3JkZjpSREY+IDwveDp4bXBtZXRhPiA8P3hwYWNrZXQgZW5kPSJyIj8+eFCcKwAAAHdJREFUeNpiDA0NvcXAwDAbiLsZsINSIE5lAhIbgbgLiLOxKMqGym1iARJlQCwAxJOB+AsQL4QqioeKzQWZClL4H4gzgJgbKvgVqhDEXgnE6SA1LFDBv1ATQIqXQsW2QsVAcgwsSO75DcShIPdA+WFA/AsmCRBgAO7AGQt+AUtuAAAAAElFTkSuQmCC" style="float: right; height: auto; margin: 0px; max-height: 100%; max-width: 100%; padding: 0px; position: relative; top: 10px;" /></p><div class="content_method_content" style="border-bottom: 1px dashed rgb(234, 214, 126); border-image: initial; border-left: 1px dashed rgb(234, 214, 126); border-right: 1px dashed rgb(234, 214, 126); border-top: none; line-height: 26px; margin: 0px 0px 10px; padding: 10px 10px 5px;"><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Nếu đường thẳng d đi qua điểm A thì ta kí hiệu <span class="mjx-chtml MathJax_CHTML" data-mathml="<math xmlns="http://www.w3.org/1998/Math/MathML"><mi>A</mi><mo>&#x2208;</mo><mi>d</mi></math>" id="MathJax-Element-2-Frame" role="presentation" style="border: 0px; direction: ltr; display: inline-block; float: none; font-size: 21.78px; line-height: 0; margin: 0px; max-height: none; max-width: none; min-height: 0px; min-width: 0px; overflow-wrap: normal; padding: 1px 0px; position: relative; text-align: left; white-space: nowrap; word-spacing: normal;" tabindex="0"><span aria-hidden="true" class="mjx-math" id="MJXc-Node-6" style="border-collapse: separate; border-spacing: 0px; display: inline-block; margin: 0px; padding: 0px;"><span class="mjx-mrow" id="MJXc-Node-7" style="box-sizing: content-box !important; display: inline-block; margin: 0px; padding: 0px;"><span class="mjx-mi" id="MJXc-Node-8" style="box-sizing: content-box !important; display: inline-block; margin: 0px; padding: 0px;"><span class="mjx-char MJXc-TeX-math-I" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-math-I, MJXc-TeX-math-Ix, MJXc-TeX-math-Iw; margin: 0px; padding: 0.507em 0px 0.278em; white-space: pre;">A</span></span><span class="mjx-mo MJXc-space3" id="MJXc-Node-9" style="box-sizing: content-box !important; display: inline-block; margin: 0px 0px 0px 0.278em; padding: 0px;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: 0px; padding: 0.232em 0px 0.37em; white-space: pre;">∈</span></span><span class="mjx-mi MJXc-space3" id="MJXc-Node-10" style="box-sizing: content-box !important; display: inline-block; margin: 0px 0px 0px 0.278em; padding: 0px;"><span class="mjx-char MJXc-TeX-math-I" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-math-I, MJXc-TeX-math-Ix, MJXc-TeX-math-Iw; margin: 0px; padding: 0.461em 0.003em 0.278em 0px; white-space: pre;">d</span></span></span></span><span class="MJX_Assistive_MathML" role="presentation" style="border: 0px !important; clip: rect(1px, 1px, 1px, 1px); display: block !important; height: 1px !important; left: 0px; margin: 0px; overflow: hidden !important; padding: 1px 0px 0px !important; position: absolute !important; top: 0px; user-select: none; width: 1px !important;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>�</mi><mo>∈</mo><mi>�</mi></math></span></span>, ngược lại ta kí hiệu <span class="mjx-chtml MathJax_CHTML" data-mathml="<math xmlns="http://www.w3.org/1998/Math/MathML"><mi>A</mi><mo>&#x2209;</mo><mi>d</mi></math>" id="MathJax-Element-3-Frame" role="presentation" style="border: 0px; direction: ltr; display: inline-block; float: none; font-size: 21.78px; line-height: 0; margin: 0px; max-height: none; max-width: none; min-height: 0px; min-width: 0px; overflow-wrap: normal; padding: 1px 0px; position: relative; text-align: left; white-space: nowrap; word-spacing: normal;" tabindex="0"><span aria-hidden="true" class="mjx-math" id="MJXc-Node-11" style="border-collapse: separate; border-spacing: 0px; display: inline-block; margin: 0px; padding: 0px;"><span class="mjx-mrow" id="MJXc-Node-12" style="box-sizing: content-box !important; display: inline-block; margin: 0px; padding: 0px;"><span class="mjx-mi" id="MJXc-Node-13" style="box-sizing: content-box !important; display: inline-block; margin: 0px; padding: 0px;"><span class="mjx-char MJXc-TeX-math-I" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-math-I, MJXc-TeX-math-Ix, MJXc-TeX-math-Iw; margin: 0px; padding: 0.507em 0px 0.278em; white-space: pre;">A</span></span><span class="mjx-mo MJXc-space3" id="MJXc-Node-14" style="box-sizing: content-box !important; display: inline-block; margin: 0px 0px 0px 0.278em; padding: 0px;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: 0px; padding: 0.416em 0px 0.553em; white-space: pre;">∉</span></span><span class="mjx-mi MJXc-space3" id="MJXc-Node-15" style="box-sizing: content-box !important; display: inline-block; margin: 0px 0px 0px 0.278em; padding: 0px;"><span class="mjx-char MJXc-TeX-math-I" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-math-I, MJXc-TeX-math-Ix, MJXc-TeX-math-Iw; margin: 0px; padding: 0.461em 0.003em 0.278em 0px; white-space: pre;">d</span></span></span></span><span class="MJX_Assistive_MathML" role="presentation" style="border: 0px !important; clip: rect(1px, 1px, 1px, 1px); display: block !important; height: 1px !important; left: 0px; margin: 0px; overflow: hidden !important; padding: 1px 0px 0px !important; position: absolute !important; top: 0px; user-select: none; width: 1px !important;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>�</mi><mo>∉</mo><mi>�</mi></math></span></span></p></div></div><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><strong class="content_detail" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Lời giải chi tiết</strong></p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Dễ thấy đường thẳng d đi qua các điểm B và C và điểm A không nằm trên đường thẳng d</p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Ta kí hiệu:</p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><span class="mjx-chtml MathJax_CHTML" data-mathml="<math xmlns="http://www.w3.org/1998/Math/MathML"><mi>A</mi><mo>&#x2209;</mo><mi>d</mi></math>" id="MathJax-Element-4-Frame" role="presentation" style="border: 0px; direction: ltr; display: inline-block; float: none; font-size: 21.78px; line-height: 0; margin: 0px; max-height: none; max-width: none; min-height: 0px; min-width: 0px; overflow-wrap: normal; padding: 1px 0px; position: relative; text-align: left; white-space: nowrap; word-spacing: normal;" tabindex="0"><span aria-hidden="true" class="mjx-math" id="MJXc-Node-16" style="border-collapse: separate; border-spacing: 0px; display: inline-block; margin: 0px; padding: 0px;"><span class="mjx-mrow" id="MJXc-Node-17" style="box-sizing: content-box !important; display: inline-block; margin: 0px; padding: 0px;"><span class="mjx-mi" id="MJXc-Node-18" style="box-sizing: content-box !important; display: inline-block; margin: 0px; padding: 0px;"><span class="mjx-char MJXc-TeX-math-I" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-math-I, MJXc-TeX-math-Ix, MJXc-TeX-math-Iw; margin: 0px; padding: 0.507em 0px 0.278em; white-space: pre;">A</span></span><span class="mjx-mo MJXc-space3" id="MJXc-Node-19" style="box-sizing: content-box !important; display: inline-block; margin: 0px 0px 0px 0.278em; padding: 0px;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: 0px; padding: 0.416em 0px 0.553em; white-space: pre;">∉</span></span><span class="mjx-mi MJXc-space3" id="MJXc-Node-20" style="box-sizing: content-box !important; display: inline-block; margin: 0px 0px 0px 0.278em; padding: 0px;"><span class="mjx-char MJXc-TeX-math-I" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-math-I, MJXc-TeX-math-Ix, MJXc-TeX-math-Iw; margin: 0px; padding: 0.461em 0.003em 0.278em 0px; white-space: pre;">d</span></span></span></span><span class="MJX_Assistive_MathML" role="presentation" style="border: 0px !important; clip: rect(1px, 1px, 1px, 1px); display: block !important; height: 1px !important; left: 0px; margin: 0px; overflow: hidden !important; padding: 1px 0px 0px !important; position: absolute !important; top: 0px; user-select: none; width: 1px !important;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>�</mi><mo>∉</mo><mi>�</mi></math></span></span></p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><span class="mjx-chtml MathJax_CHTML" data-mathml="<math xmlns="http://www.w3.org/1998/Math/MathML"><mi>B</mi><mo>&#x2208;</mo><mi>d</mi></math>" id="MathJax-Element-5-Frame" role="presentation" style="border: 0px; direction: ltr; display: inline-block; float: none; font-size: 21.78px; line-height: 0; margin: 0px; max-height: none; max-width: none; min-height: 0px; min-width: 0px; overflow-wrap: normal; padding: 1px 0px; position: relative; text-align: left; white-space: nowrap; word-spacing: normal;" tabindex="0"><span aria-hidden="true" class="mjx-math" id="MJXc-Node-21" style="border-collapse: separate; border-spacing: 0px; display: inline-block; margin: 0px; padding: 0px;"><span class="mjx-mrow" id="MJXc-Node-22" style="box-sizing: content-box !important; display: inline-block; margin: 0px; padding: 0px;"><span class="mjx-mi" id="MJXc-Node-23" style="box-sizing: content-box !important; display: inline-block; margin: 0px; padding: 0px;"><span class="mjx-char MJXc-TeX-math-I" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-math-I, MJXc-TeX-math-Ix, MJXc-TeX-math-Iw; margin: 0px; padding: 0.461em 0px 0.278em; white-space: pre;">B</span></span><span class="mjx-mo MJXc-space3" id="MJXc-Node-24" style="box-sizing: content-box !important; display: inline-block; margin: 0px 0px 0px 0.278em; padding: 0px;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: 0px; padding: 0.232em 0px 0.37em; white-space: pre;">∈</span></span><span class="mjx-mi MJXc-space3" id="MJXc-Node-25" style="box-sizing: content-box !important; display: inline-block; margin: 0px 0px 0px 0.278em; padding: 0px;"><span class="mjx-char MJXc-TeX-math-I" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-math-I, MJXc-TeX-math-Ix, MJXc-TeX-math-Iw; margin: 0px; padding: 0.461em 0.003em 0.278em 0px; white-space: pre;">d</span></span></span></span><span class="MJX_Assistive_MathML" role="presentation" style="border: 0px !important; clip: rect(1px, 1px, 1px, 1px); display: block !important; height: 1px !important; left: 0px; margin: 0px; overflow: hidden !important; padding: 1px 0px 0px !important; position: absolute !important; top: 0px; user-select: none; width: 1px !important;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>�</mi><mo>∈</mo><mi>�</mi></math></span></span></p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><span class="mjx-chtml MathJax_CHTML" data-mathml="<math xmlns="http://www.w3.org/1998/Math/MathML"><mi>C</mi><mo>&#x2208;</mo><mi>d</mi></math>" id="MathJax-Element-6-Frame" role="presentation" style="border: 0px; direction: ltr; display: inline-block; float: none; font-size: 21.78px; line-height: 0; margin: 0px; max-height: none; max-width: none; min-height: 0px; min-width: 0px; overflow-wrap: normal; padding: 1px 0px; position: relative; text-align: left; white-space: nowrap; word-spacing: normal;" tabindex="0"><span aria-hidden="true" class="mjx-math" id="MJXc-Node-26" style="border-collapse: separate; border-spacing: 0px; display: inline-block; margin: 0px; padding: 0px;"><span class="mjx-mrow" id="MJXc-Node-27" style="box-sizing: content-box !important; display: inline-block; margin: 0px; padding: 0px;"><span class="mjx-mi" id="MJXc-Node-28" style="box-sizing: content-box !important; display: inline-block; margin: 0px; padding: 0px;"><span class="mjx-char MJXc-TeX-math-I" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-math-I, MJXc-TeX-math-Ix, MJXc-TeX-math-Iw; margin: 0px; padding: 0.461em 0.045em 0.278em 0px; white-space: pre;">C</span></span><span class="mjx-mo MJXc-space3" id="MJXc-Node-29" style="box-sizing: content-box !important; display: inline-block; margin: 0px 0px 0px 0.278em; padding: 0px;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: 0px; padding: 0.232em 0px 0.37em; white-space: pre;">∈</span></span><span class="mjx-mi MJXc-space3" id="MJXc-Node-30" style="box-sizing: content-box !important; display: inline-block; margin: 0px 0px 0px 0.278em; padding: 0px;"><span class="mjx-char MJXc-TeX-math-I" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-math-I, MJXc-TeX-math-Ix, MJXc-TeX-math-Iw; margin: 0px; padding: 0.461em 0.003em 0.278em 0px; white-space: pre;">d</span></span></span></span></span></p></div></div><br />Giải bài 4 trang 87 sách bài tập Toán 6 - Chân trời sáng tạo Tập 2<div class="detail_new" style="background-color: white; font-family: OpenSans, Tahoma, Helvetica, sans-serif; font-size: 16px; line-height: 26px; margin: 0px; padding: 0px 5px; word-break: break-word;"><div class="center bottom10" style="margin-bottom: 10px !important; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding: 0px; text-align: center;"><ins class="982a9496" data-key="032300ccaf074f044010600ff650587e" style="margin: 0px; padding: 0px;"></ins></div><div class="post-toc" id="post-toc-container" style="margin: 0px; padding: 0px;"></div><div id="box-content" style="font-size: 18px; line-height: 26px; margin: 0px; padding: 0px; text-align: justify;"><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><strong class="content_question" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Đề bài</strong></p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Vẽ đường thẳng b</p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">a) Vẽ điểm M không nằm trên đường thẳng b.</p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">b) Vẽ điểm N nằm trên đường thẳng b.</p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">c) Sử dụng các kí hiệu <span class="mjx-chtml MathJax_CHTML" data-mathml="<math xmlns="http://www.w3.org/1998/Math/MathML"><mo>&#x2208;</mo><mo>,</mo><mo>&#x2209;</mo></math>" id="MathJax-Element-1-Frame" role="presentation" style="border: 0px; direction: ltr; display: inline-block; float: none; font-size: 21.78px; line-height: 0; margin: 0px; max-height: none; max-width: none; min-height: 0px; min-width: 0px; overflow-wrap: normal; padding: 1px 0px; position: relative; text-align: left; white-space: nowrap; word-spacing: normal;" tabindex="0"><span aria-hidden="true" class="mjx-math" id="MJXc-Node-1" style="border-collapse: separate; border-spacing: 0px; display: inline-block; margin: 0px; padding: 0px;"><span class="mjx-mrow" id="MJXc-Node-2" style="box-sizing: content-box !important; display: inline-block; margin: 0px; padding: 0px;"><span class="mjx-mo" id="MJXc-Node-3" style="box-sizing: content-box !important; display: inline-block; margin: 0px; padding: 0px;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: 0px; padding: 0.232em 0px 0.37em; white-space: pre;">∈</span></span><span class="mjx-mo" id="MJXc-Node-4" style="box-sizing: content-box !important; display: inline-block; margin: 0px; padding: 0px;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: -0.181em 0px 0px; padding: 0px 0px 0.553em; white-space: pre;">,</span></span><span class="mjx-mo MJXc-space1" id="MJXc-Node-5" style="box-sizing: content-box !important; display: inline-block; margin: 0px 0px 0px 0.167em; padding: 0px;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: 0px; padding: 0.416em 0px 0.553em; white-space: pre;">∉</span></span></span></span><span class="MJX_Assistive_MathML" role="presentation" style="border: 0px !important; clip: rect(1px, 1px, 1px, 1px); display: block !important; height: 1px !important; left: 0px; margin: 0px; overflow: hidden !important; padding: 1px 0px 0px !important; position: absolute !important; top: 0px; user-select: none; width: 1px !important;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mo>∈</mo><mo>,</mo><mo>∉</mo></math></span></span> để viết các mô tả sau: “ Điểm N thuộc đường thẳng b; điểm M không thuộc đường thẳng b”.</p><div class="content_method_container" style="line-height: 26px; margin: 0px; padding: 10px 0px 2px;"><p class="content_method_header" style="background: rgb(252, 241, 196); border-radius: 5px; cursor: pointer; line-height: 26px; margin: 0px; padding: 10px; text-align: center; word-break: normal;"><strong class="content_method" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Phương pháp giải - Xem chi tiết</strong><img class="method-open-icon" id="method_colapse_icon" src="data:image/png;base64,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" style="float: right; height: auto; margin: 0px; max-height: 100%; max-width: 100%; padding: 0px; position: relative; top: 10px;" /></p><div class="content_method_content" style="border-bottom: 1px dashed rgb(234, 214, 126); border-image: initial; border-left: 1px dashed rgb(234, 214, 126); border-right: 1px dashed rgb(234, 214, 126); border-top: none; line-height: 26px; margin: 0px 0px 10px; padding: 10px 10px 5px;"><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Nếu đường thẳng d đi qua điểm A thì ta kí hiệu <span class="mjx-chtml MathJax_CHTML" data-mathml="<math xmlns="http://www.w3.org/1998/Math/MathML"><mi>A</mi><mo>&#x2208;</mo><mi>d</mi></math>" id="MathJax-Element-2-Frame" role="presentation" style="border: 0px; direction: ltr; display: inline-block; float: none; font-size: 21.78px; line-height: 0; margin: 0px; max-height: none; max-width: none; min-height: 0px; min-width: 0px; overflow-wrap: normal; padding: 1px 0px; position: relative; text-align: left; white-space: nowrap; word-spacing: normal;" tabindex="0"><span aria-hidden="true" class="mjx-math" id="MJXc-Node-6" style="border-collapse: separate; border-spacing: 0px; display: inline-block; margin: 0px; padding: 0px;"><span class="mjx-mrow" id="MJXc-Node-7" style="box-sizing: content-box !important; display: inline-block; margin: 0px; padding: 0px;"><span class="mjx-mi" id="MJXc-Node-8" style="box-sizing: content-box !important; display: inline-block; margin: 0px; padding: 0px;"><span class="mjx-char MJXc-TeX-math-I" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-math-I, MJXc-TeX-math-Ix, MJXc-TeX-math-Iw; margin: 0px; padding: 0.507em 0px 0.278em; white-space: pre;">A</span></span><span class="mjx-mo MJXc-space3" id="MJXc-Node-9" style="box-sizing: content-box !important; display: inline-block; margin: 0px 0px 0px 0.278em; padding: 0px;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: 0px; padding: 0.232em 0px 0.37em; white-space: pre;">∈</span></span><span class="mjx-mi MJXc-space3" id="MJXc-Node-10" style="box-sizing: content-box !important; display: inline-block; margin: 0px 0px 0px 0.278em; padding: 0px;"><span class="mjx-char MJXc-TeX-math-I" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-math-I, MJXc-TeX-math-Ix, MJXc-TeX-math-Iw; margin: 0px; padding: 0.461em 0.003em 0.278em 0px; white-space: pre;">d</span></span></span></span><span class="MJX_Assistive_MathML" role="presentation" style="border: 0px !important; clip: rect(1px, 1px, 1px, 1px); display: block !important; height: 1px !important; left: 0px; margin: 0px; overflow: hidden !important; padding: 1px 0px 0px !important; position: absolute !important; top: 0px; user-select: none; width: 1px !important;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>�</mi><mo>∈</mo><mi>�</mi></math></span></span>, ngược lại ta kí hiệu <span class="mjx-chtml MathJax_CHTML" data-mathml="<math xmlns="http://www.w3.org/1998/Math/MathML"><mi>A</mi><mo>&#x2209;</mo><mi>d</mi></math>" id="MathJax-Element-3-Frame" role="presentation" style="border: 0px; direction: ltr; display: inline-block; float: none; font-size: 21.78px; line-height: 0; margin: 0px; max-height: none; max-width: none; min-height: 0px; min-width: 0px; overflow-wrap: normal; padding: 1px 0px; position: relative; text-align: left; white-space: nowrap; word-spacing: normal;" tabindex="0"><span aria-hidden="true" class="mjx-math" id="MJXc-Node-11" style="border-collapse: separate; border-spacing: 0px; display: inline-block; margin: 0px; padding: 0px;"><span class="mjx-mrow" id="MJXc-Node-12" style="box-sizing: content-box !important; display: inline-block; margin: 0px; padding: 0px;"><span class="mjx-mi" id="MJXc-Node-13" style="box-sizing: content-box !important; display: inline-block; margin: 0px; padding: 0px;"><span class="mjx-char MJXc-TeX-math-I" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-math-I, MJXc-TeX-math-Ix, MJXc-TeX-math-Iw; margin: 0px; padding: 0.507em 0px 0.278em; white-space: pre;">A</span></span><span class="mjx-mo MJXc-space3" id="MJXc-Node-14" style="box-sizing: content-box !important; display: inline-block; margin: 0px 0px 0px 0.278em; padding: 0px;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: 0px; padding: 0.416em 0px 0.553em; white-space: pre;">∉</span></span><span class="mjx-mi MJXc-space3" id="MJXc-Node-15" style="box-sizing: content-box !important; display: inline-block; margin: 0px 0px 0px 0.278em; padding: 0px;"><span class="mjx-char MJXc-TeX-math-I" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-math-I, MJXc-TeX-math-Ix, MJXc-TeX-math-Iw; margin: 0px; padding: 0.461em 0.003em 0.278em 0px; white-space: pre;">d</span></span></span></span><span class="MJX_Assistive_MathML" role="presentation" style="border: 0px !important; clip: rect(1px, 1px, 1px, 1px); display: block !important; height: 1px !important; left: 0px; margin: 0px; overflow: hidden !important; padding: 1px 0px 0px !important; position: absolute !important; top: 0px; user-select: none; width: 1px !important;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>�</mi><mo>∉</mo><mi>�</mi></math></span></span></p></div></div><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><strong class="content_detail" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Lời giải chi tiết</strong></p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">a), b)  </p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">            <img height="102" src="https://img.loigiaihay.com/picture/2022/1020/capture_31.PNG" style="height: auto; margin: 0px; max-height: 100%; max-width: 100%; padding: 0px;" width="305" />                               <strong style="font-family: OpenSansBold; margin: 0px; padding: 0px;">                            </strong></p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><strong style="font-family: OpenSansBold; margin: 0px; padding: 0px;"></strong>c) <span class="mjx-chtml MathJax_CHTML" data-mathml="<math xmlns="http://www.w3.org/1998/Math/MathML"><mi>N</mi><mo>&#x2208;</mo><mi>d</mi></math>" id="MathJax-Element-4-Frame" role="presentation" style="border: 0px; direction: ltr; display: inline-block; float: none; font-size: 21.78px; line-height: 0; margin: 0px; max-height: none; max-width: none; min-height: 0px; min-width: 0px; overflow-wrap: normal; padding: 1px 0px; position: relative; text-align: left; white-space: nowrap; word-spacing: normal;" tabindex="0"><span aria-hidden="true" class="mjx-math" id="MJXc-Node-16" style="border-collapse: separate; border-spacing: 0px; display: inline-block; margin: 0px; padding: 0px;"><span class="mjx-mrow" id="MJXc-Node-17" style="box-sizing: content-box !important; display: inline-block; margin: 0px; padding: 0px;"><span class="mjx-mi" id="MJXc-Node-18" style="box-sizing: content-box !important; display: inline-block; margin: 0px; padding: 0px;"><span class="mjx-char MJXc-TeX-math-I" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-math-I, MJXc-TeX-math-Ix, MJXc-TeX-math-Iw; margin: 0px; padding: 0.461em 0.085em 0.278em 0px; white-space: pre;">N</span></span><span class="mjx-mo MJXc-space3" id="MJXc-Node-19" style="box-sizing: content-box !important; display: inline-block; margin: 0px 0px 0px 0.278em; padding: 0px;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: 0px; padding: 0.232em 0px 0.37em; white-space: pre;">∈</span></span><span class="mjx-mi MJXc-space3" id="MJXc-Node-20" style="box-sizing: content-box !important; display: inline-block; margin: 0px 0px 0px 0.278em; padding: 0px;"><span class="mjx-char MJXc-TeX-math-I" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-math-I, MJXc-TeX-math-Ix, MJXc-TeX-math-Iw; margin: 0px; padding: 0.461em 0.003em 0.278em 0px; white-space: pre;">d</span></span></span></span><span class="MJX_Assistive_MathML" role="presentation" style="border: 0px !important; clip: rect(1px, 1px, 1px, 1px); display: block !important; height: 1px !important; left: 0px; margin: 0px; overflow: hidden !important; padding: 1px 0px 0px !important; position: absolute !important; top: 0px; user-select: none; width: 1px !important;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>�</mi><mo>∈</mo><mi>�</mi></math></span></span>; <span class="mjx-chtml MathJax_CHTML" data-mathml="<math xmlns="http://www.w3.org/1998/Math/MathML"><mi>M</mi><mo>&#x2209;</mo><mi>d</mi></math>" id="MathJax-Element-5-Frame" role="presentation" style="border: 0px; direction: ltr; display: inline-block; float: none; font-size: 21.78px; line-height: 0; margin: 0px; max-height: none; max-width: none; min-height: 0px; min-width: 0px; overflow-wrap: normal; padding: 1px 0px; position: relative; text-align: left; white-space: nowrap; word-spacing: normal;" tabindex="0"><span aria-hidden="true" class="mjx-math" id="MJXc-Node-21" style="border-collapse: separate; border-spacing: 0px; display: inline-block; margin: 0px; padding: 0px;"><span class="mjx-mrow" id="MJXc-Node-22" style="box-sizing: content-box !important; display: inline-block; margin: 0px; padding: 0px;"><span class="mjx-mi" id="MJXc-Node-23" style="box-sizing: content-box !important; display: inline-block; margin: 0px; padding: 0px;"><span class="mjx-char MJXc-TeX-math-I" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-math-I, MJXc-TeX-math-Ix, MJXc-TeX-math-Iw; margin: 0px; padding: 0.461em 0.081em 0.278em 0px; white-space: pre;">M</span></span><span class="mjx-mo MJXc-space3" id="MJXc-Node-24" style="box-sizing: content-box !important; display: inline-block; margin: 0px 0px 0px 0.278em; padding: 0px;"><span class="mjx-char MJXc-TeX-main-R" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-main-R, MJXc-TeX-main-Rw; margin: 0px; padding: 0.416em 0px 0.553em; white-space: pre;">∉</span></span><span class="mjx-mi MJXc-space3" id="MJXc-Node-25" style="box-sizing: content-box !important; display: inline-block; margin: 0px 0px 0px 0.278em; padding: 0px;"><span class="mjx-char MJXc-TeX-math-I" style="box-sizing: content-box !important; display: block; font-family: MJXc-TeX-math-I, MJXc-TeX-math-Ix, MJXc-TeX-math-Iw; margin: 0px; padding: 0.461em 0.003em 0.278em 0px; white-space: pre;">d</span></span></span></span><span class="MJX_Assistive_MathML" role="presentation" style="border: 0px !important; clip: rect(1px, 1px, 1px, 1px); display: block !important; height: 1px !important; left: 0px; margin: 0px; overflow: hidden !important; padding: 1px 0px 0px !important; position: absolute !important; top: 0px; user-select: none; width: 1px !important;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>�</mi><mo>∉</mo><mi>�</mi></math></span></span>.</p><div><br /></div><div style="line-height: 26px; margin: 0px; padding: 0px;"></div></div><ins class="982a9496" data-key="8c1a76b9ab4d8e1356920626d3ae545d" style="margin: 0px; padding: 0px;"></ins></div><br />Giải bài 5 trang 87 sách bài tập Toán 6 - Chân trời sáng tạo Tập 2<div class="detail_new" style="background-color: white; font-family: OpenSans, Tahoma, Helvetica, sans-serif; font-size: 16px; line-height: 26px; margin: 0px; padding: 0px 5px; word-break: break-word;"><div class="center bottom10" style="margin-bottom: 10px !important; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding: 0px; text-align: center;"><ins class="982a9496" data-key="032300ccaf074f044010600ff650587e" style="margin: 0px; padding: 0px;"></ins></div><div class="post-toc" id="post-toc-container" style="margin: 0px; padding: 0px;"></div><div id="box-content" style="font-size: 18px; line-height: 26px; margin: 0px; padding: 0px; text-align: justify;"><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><strong class="content_question" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Đề bài</strong></p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Trong hình bên, em hãy chỉ ra</p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">a) Những điểm nào thuộc đường thẳng p những điểm nào không thuộc đường thẳng p, những điểm nào không thuộc đường thẳng p;</p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">b) Những đường thẳng nào chứa điểm A, điểm B, điểm C, điểm D, điểm E.</p><div class="content_method_container" style="line-height: 26px; margin: 0px; padding: 10px 0px 2px;"><p class="content_method_header" style="background: rgb(252, 241, 196); border-radius: 5px; cursor: pointer; line-height: 26px; margin: 0px; padding: 10px; text-align: center; word-break: normal;"><strong class="content_method" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Phương pháp giải - Xem chi tiết</strong><img class="method-open-icon" id="method_colapse_icon" src="data:image/png;base64,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" style="float: right; height: auto; margin: 0px; max-height: 100%; max-width: 100%; padding: 0px; position: relative; top: 10px;" /></p><div class="content_method_content" style="border-bottom: 1px dashed rgb(234, 214, 126); border-image: initial; border-left: 1px dashed rgb(234, 214, 126); border-right: 1px dashed rgb(234, 214, 126); border-top: none; line-height: 26px; margin: 0px 0px 10px; padding: 10px 10px 5px;"><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Nếu đường thẳng d đi qua điểm A thì ta nói điểm A thuộc đường thẳng d hoặc đường thẳng d chứa điểm A.</p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Nếu đường thẳng d không đi qua điểm A thì ta nói điểm A không thuộc đường thẳng d hoặc đường thẳng d không chứa điểm A.</p></div></div><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><strong class="content_detail" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Lời giải chi tiết</strong></p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">a) Những điểm thuộc đường thẳng p: B, E, A</p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Những điểm không thuộc đường thẳng p: C, D</p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">b) Những đường thẳng chứa điểm A: m, p, k</p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Những đường thẳng chứa điểm B: n, p</p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Những đường thẳng chứa điểm C: n, k</p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Đường thẳng chứa điểm D: n</p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Đường thẳng chứa điểm E: p.</p></div></div><div>Giải bài 6 trang 87 sách bài tập Toán 6 - Chân trời sáng tạo Tập 2<div class="detail_new" style="background-color: white; font-family: OpenSans, Tahoma, Helvetica, sans-serif; font-size: 16px; line-height: 26px; margin: 0px; padding: 0px 5px; word-break: break-word;"><div class="center bottom10" style="margin-bottom: 10px !important; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding: 0px; text-align: center;"><ins class="982a9496" data-key="032300ccaf074f044010600ff650587e" style="margin: 0px; padding: 0px;"></ins></div><div class="post-toc" id="post-toc-container" style="margin: 0px; padding: 0px;"></div><div id="box-content" style="font-size: 18px; line-height: 26px; margin: 0px; padding: 0px; text-align: justify;"><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><strong class="content_question" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Đề bài</strong></p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Hãy vẽ hình trong các trường hợp sau:</p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">a) Điểm K thuộc cả hai đường thẳng a và b.</p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">b) Điểm K thuộc đường thẳng a nhưng không thuộc đường thẳng b.</p><div class="content_method_container" style="line-height: 26px; margin: 0px; padding: 10px 0px 2px;"><p class="content_method_header" style="background: rgb(252, 241, 196); border-radius: 5px; cursor: pointer; line-height: 26px; margin: 0px; padding: 10px; text-align: center; word-break: normal;"><strong class="content_method" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Phương pháp giải - Xem chi tiết</strong><img class="method-open-icon" id="method_colapse_icon" src="data:image/png;base64,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" style="float: right; height: auto; margin: 0px; max-height: 100%; max-width: 100%; padding: 0px; position: relative; top: 10px;" /></p><div class="content_method_content" style="border-bottom: 1px dashed rgb(234, 214, 126); border-image: initial; border-left: 1px dashed rgb(234, 214, 126); border-right: 1px dashed rgb(234, 214, 126); border-top: none; line-height: 26px; margin: 0px 0px 10px; padding: 10px 10px 5px;"><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Nếu điểm A thuộc đường thẳng d thì ta vẽ a nằm trên đường thẳng d hoặc đường thẳng d đi qua điểm A.</p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Nếu điểm A không thuộc đường thẳng d thì đường thẳng d không đi qua điểm A hoặc đường thẳng d không chứa điểm A.</p></div></div><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><strong class="content_detail" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Lời giải chi tiết</strong></p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">a)</p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><img height="128" src="https://img.loigiaihay.com/picture/2022/1020/capture_29.PNG" style="height: auto; margin: 0px; max-height: 100%; max-width: 100%; padding: 0px;" width="267" /></p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">b) <strong style="font-family: OpenSansBold; margin: 0px; padding: 0px;">        </strong></p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><img height="124" src="https://img.loigiaihay.com/picture/2022/1020/capture_30.PNG" style="height: auto; margin: 0px; max-height: 100%; max-width: 100%; padding: 0px;" width="282" /></p></div></div><br />Giải bài 7 trang 87 sách bài tập Toán 6 - Chân trời sáng tạo Tập 2<div class="detail_new" style="background-color: white; font-family: OpenSans, Tahoma, Helvetica, sans-serif; font-size: 16px; line-height: 26px; margin: 0px; padding: 0px 5px; word-break: break-word;"><div class="center bottom10" style="margin-bottom: 10px !important; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding: 0px; text-align: center;"><ins class="982a9496" data-key="032300ccaf074f044010600ff650587e" style="margin: 0px; padding: 0px;"></ins></div><div class="post-toc" id="post-toc-container" style="margin: 0px; padding: 0px;"></div><div id="box-content" style="font-size: 18px; line-height: 26px; margin: 0px; padding: 0px; text-align: justify;"><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><strong class="content_question" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Đề bài</strong></p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Vẽ ba điểm sao cho chúng không cùng nằm trên một đường thẳng. Cứ qua hai điểm ta vẽ một đường thẳng. Hỏi có bao nhiêu đường thẳng được tạo thành?</p><div class="content_method_container" style="line-height: 26px; margin: 0px; padding: 10px 0px 2px;"><p class="content_method_header" style="background: rgb(252, 241, 196); border-radius: 5px; cursor: pointer; line-height: 26px; margin: 0px; padding: 10px; text-align: center; word-break: normal;"><strong class="content_method" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Phương pháp giải - Xem chi tiết</strong><img class="method-open-icon" id="method_colapse_icon" src="data:image/png;base64,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" style="float: right; height: auto; margin: 0px; max-height: 100%; max-width: 100%; padding: 0px; position: relative; top: 10px;" /></p><div class="content_method_content" style="border-bottom: 1px dashed rgb(234, 214, 126); border-image: initial; border-left: 1px dashed rgb(234, 214, 126); border-right: 1px dashed rgb(234, 214, 126); border-top: none; line-height: 26px; margin: 0px 0px 10px; padding: 10px 10px 5px;"><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Bước 1: lấy 3 điểm A, B, C không cùng thuộc một đường thẳng</p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Bước 2: Vẽ các đường thẳng lần lượt đi qua hai điểm trong 3 điểm trên.</p></div></div><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><strong class="content_detail" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Lời giải chi tiết</strong></p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><img height="211" src="https://img.loigiaihay.com/picture/2022/1020/capture_28.PNG" style="height: auto; margin: 0px; max-height: 100%; max-width: 100%; padding: 0px;" width="262" /></p></div></div></div>

Bài 1. Điểm. Đường thẳng

Giải bài 1 trang 86 sách bài tập Toán 6 - Chân trời sáng tạo Tập 2 Đề bài a) Em hãy nêu cách kí hiệu của điểm và đường thẳng b) Trong các ...

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Bài 2. Ba điểm thẳng hàng. Ba điểm không thẳng hàng

<p> </p><br />Giải bài 1 trang 88 sách bài tập Toán 6 - Chân trời sáng tạo Tập 2<div class="detail_new" style="background-color: white; font-family: OpenSans, Tahoma, Helvetica, sans-serif; font-size: 16px; line-height: 26px; margin: 0px; padding: 0px 5px; word-break: break-word;"><div class="center bottom10" style="margin-bottom: 10px !important; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding: 0px; text-align: center;"><ins class="982a9496" data-key="032300ccaf074f044010600ff650587e" style="margin: 0px; padding: 0px;"></ins></div><div class="post-toc" id="post-toc-container" style="margin: 0px; padding: 0px;"></div><div id="box-content" style="font-size: 18px; line-height: 26px; margin: 0px; padding: 0px; text-align: justify;"><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><strong class="content_question" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Đề bài</strong></p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Em hãy chấm ba điểm A, B, C trên giấy. Có những cách nào để kiểm tra xem ba điểm đó có thẳng hàng hay không?</p><div class="content_method_container" style="line-height: 26px; margin: 0px; padding: 10px 0px 2px;"><p class="content_method_header" style="background: rgb(252, 241, 196); border-radius: 5px; cursor: pointer; line-height: 26px; margin: 0px; padding: 10px; text-align: center; word-break: normal;"><strong class="content_method" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Phương pháp giải - Xem chi tiết</strong><img class="method-open-icon" id="method_colapse_icon" src="data:image/png;base64,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" style="float: right; height: auto; margin: 0px; max-height: 100%; max-width: 100%; padding: 0px; position: relative; top: 10px;" /></p><div class="content_method_content" style="border-bottom: 1px dashed rgb(234, 214, 126); border-image: initial; border-left: 1px dashed rgb(234, 214, 126); border-right: 1px dashed rgb(234, 214, 126); border-top: none; line-height: 26px; margin: 0px 0px 10px; padding: 10px 10px 5px;"><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Ba điểm thẳng hàng khi ba điểm đó cùng thuộc một đường thẳng. Để có một đường thẳng ta dùng thước hoặc gấp tờ giấy theo mép.</p></div></div><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><strong class="content_detail" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Lời giải chi tiết</strong></p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Ba điểm thẳng hàng khi ba điểm đó cùng thuộc một đường thẳng.</p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Để kiểm tra ba điểm trên giấy có thẳng hàng hay không, ta có thể dùng theo một trong hai cách sau:</p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Cách 1: Dùng thước vẽ một đường thẳng đi qua hai điểm trong số ba điểm đó, rồi kéo dài đường thẳng đó dọc theo mép thước và kiểm tra điểm còn lại có nằm trên đường kéo dài hay không. Nếu điểm đó cũng thuộc thường thẳng thì ba điểm đó thẳng hàng.</p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Cách 2: Gấp tờ giấy theo mép đi qua hai trong ba điểm đã cho và nhìn xem điểm thứ ba có thuộc vào mép tờ giấy vừa gấp không, nếu thuộc thì ba điểm đã cho thẳng hàng.</p></div></div><br />Giải bài 2 trang 88 sách bài tập Toán 6 - Chân trời sáng tạo Tập 2<div class="detail_new" style="background-color: white; font-family: OpenSans, Tahoma, Helvetica, sans-serif; font-size: 16px; line-height: 26px; margin: 0px; padding: 0px 5px; word-break: break-word;"><div class="center bottom10" style="margin-bottom: 10px !important; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding: 0px; text-align: center;"><ins class="982a9496" data-key="032300ccaf074f044010600ff650587e" style="margin: 0px; padding: 0px;"></ins></div><div class="post-toc" id="post-toc-container" style="margin: 0px; padding: 0px;"></div><div id="box-content" style="font-size: 18px; line-height: 26px; margin: 0px; padding: 0px; text-align: justify;"><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><strong class="content_question" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Đề bài</strong></p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Trong hình bên, em hãy dự đoán xem ba điểm nào thẳng hàng. Sau đó dùng thước kẻ để kiểm tra lại dự đoán của em.</p><div class="content_method_container" style="line-height: 26px; margin: 0px; padding: 10px 0px 2px;"><p class="content_method_header" style="background: rgb(252, 241, 196); border-radius: 5px; cursor: pointer; line-height: 26px; margin: 0px; padding: 10px; text-align: center; word-break: normal;"><strong class="content_method" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Phương pháp giải - Xem chi tiết</strong><img class="method-open-icon" id="method_colapse_icon" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAAGCAYAAAD68A/GAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAA2ZpVFh0WE1MOmNvbS5hZG9iZS54bXAAAAAAADw/eHBhY2tldCBiZWdpbj0i77u/IiBpZD0iVzVNME1wQ2VoaUh6cmVTek5UY3prYzlkIj8+IDx4OnhtcG1ldGEgeG1sbnM6eD0iYWRvYmU6bnM6bWV0YS8iIHg6eG1wdGs9IkFkb2JlIFhNUCBDb3JlIDUuMy1jMDExIDY2LjE0NTY2MSwgMjAxMi8wMi8wNi0xNDo1NjoyNyAgICAgICAgIj4gPHJkZjpSREYgeG1sbnM6cmRmPSJodHRwOi8vd3d3LnczLm9yZy8xOTk5LzAyLzIyLXJkZi1zeW50YXgtbnMjIj4gPHJkZjpEZXNjcmlwdGlvbiByZGY6YWJvdXQ9IiIgeG1sbnM6eG1wTU09Imh0dHA6Ly9ucy5hZG9iZS5jb20veGFwLzEuMC9tbS8iIHhtbG5zOnN0UmVmPSJodHRwOi8vbnMuYWRvYmUuY29tL3hhcC8xLjAvc1R5cGUvUmVzb3VyY2VSZWYjIiB4bWxuczp4bXA9Imh0dHA6Ly9ucy5hZG9iZS5jb20veGFwLzEuMC8iIHhtcE1NOk9yaWdpbmFsRG9jdW1lbnRJRD0ieG1wLmRpZDoxM0UzREU1OEVDMzZFODExQkQ5N0VEMEYzMTQyQzg0NSIgeG1wTU06RG9jdW1lbnRJRD0ieG1wLmRpZDo5NTFEMTQyQTM3QUExMUU4OTg2OUQ0MzRDMEZGNkVBQiIgeG1wTU06SW5zdGFuY2VJRD0ieG1wLmlpZDo5NTFEMTQyOTM3QUExMUU4OTg2OUQ0MzRDMEZGNkVBQiIgeG1wOkNyZWF0b3JUb29sPSJBZG9iZSBQaG90b3Nob3AgQ1M2IChXaW5kb3dzKSI+IDx4bXBNTTpEZXJpdmVkRnJvbSBzdFJlZjppbnN0YW5jZUlEPSJ4bXAuaWlkOjEzRTNERTU4RUMzNkU4MTFCRDk3RUQwRjMxNDJDODQ1IiBzdFJlZjpkb2N1bWVudElEPSJ4bXAuZGlkOjEzRTNERTU4RUMzNkU4MTFCRDk3RUQwRjMxNDJDODQ1Ii8+IDwvcmRmOkRlc2NyaXB0aW9uPiA8L3JkZjpSREY+IDwveDp4bXBtZXRhPiA8P3hwYWNrZXQgZW5kPSJyIj8+eFCcKwAAAHdJREFUeNpiDA0NvcXAwDAbiLsZsINSIE5lAhIbgbgLiLOxKMqGym1iARJlQCwAxJOB+AsQL4QqioeKzQWZClL4H4gzgJgbKvgVqhDEXgnE6SA1LFDBv1ATQIqXQsW2QsVAcgwsSO75DcShIPdA+WFA/AsmCRBgAO7AGQt+AUtuAAAAAElFTkSuQmCC" style="float: right; height: auto; margin: 0px; max-height: 100%; max-width: 100%; padding: 0px; position: relative; top: 10px;" /></p><div class="content_method_content" style="border-bottom: 1px dashed rgb(234, 214, 126); border-image: initial; border-left: 1px dashed rgb(234, 214, 126); border-right: 1px dashed rgb(234, 214, 126); border-top: none; line-height: 26px; margin: 0px 0px 10px; padding: 10px 10px 5px;"><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Để kiểm tra ba điểm có thẳng hàng hay không, ta có thể dùng thước vẽ một đường thẳng đi qua hai điểm trong số ba điểm đó, rồi kéo dài đường thẳng đó dọc theo mép thước và kiểm tra điểm còn lại có nằm trên đường kéo dài hay không. Nếu điểm đó cũng thuộc thường thẳng thì ba điểm đó thẳng hàng.</p></div></div><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><strong class="content_detail" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Lời giải chi tiết</strong></p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Các bộ ba điểm thẳng hàng trong hình vẽ là</p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">(A, G, D) và (A, H, E).</p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><img height="206" src="https://img.loigiaihay.com/picture/2022/1020/capture_27.PNG" style="height: auto; margin: 0px; max-height: 100%; max-width: 100%; padding: 0px;" width="238" /></p></div></div>Giải bài 3 trang 88 sách bài tập Toán 6 - Chân trời sáng tạo Tập 2<div class="detail_new" style="background-color: white; font-family: OpenSans, Tahoma, Helvetica, sans-serif; font-size: 16px; line-height: 26px; margin: 0px; padding: 0px 5px; word-break: break-word;"><div class="center bottom10" style="margin-bottom: 10px !important; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding: 0px; text-align: center;"><ins class="982a9496" data-key="032300ccaf074f044010600ff650587e" style="margin: 0px; padding: 0px;"></ins></div><div class="post-toc" id="post-toc-container" style="margin: 0px; padding: 0px;"></div><div id="box-content" style="font-size: 18px; line-height: 26px; margin: 0px; padding: 0px; text-align: justify;"><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><strong class="content_question" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Đề bài</strong></p><p align="left" style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Có tồn tại năm điểm A, B, C, D và E cùng nằm trên một đường thẳng sao cho điểm B vừa vừa nằm giữa cặp điểm A và C, vừa nằm giữa cặp điểm D và E hay không? Hãy vẽ hình minh hoạ (nếu có).</p><div class="content_method_container" style="line-height: 26px; margin: 0px; padding: 10px 0px 2px;"><p class="content_method_header" style="background: rgb(252, 241, 196); border-radius: 5px; cursor: pointer; line-height: 26px; margin: 0px; padding: 10px; text-align: center; word-break: normal;"><strong class="content_method" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Phương pháp giải - Xem chi tiết</strong><img class="method-open-icon" id="method_colapse_icon" src="data:image/png;base64,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" style="float: right; height: auto; margin: 0px; max-height: 100%; max-width: 100%; padding: 0px; position: relative; top: 10px;" /></p><div class="content_method_content" style="border-bottom: 1px dashed rgb(234, 214, 126); border-image: initial; border-left: 1px dashed rgb(234, 214, 126); border-right: 1px dashed rgb(234, 214, 126); border-top: none; line-height: 26px; margin: 0px 0px 10px; padding: 10px 10px 5px;"><p align="left" style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Vẽ đường thẳng d. Lần lượt lấy điểm B và các điểm A,C, D, E trên đường thẳng d.</p></div></div><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><strong class="content_detail" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Lời giải chi tiết</strong></p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Có tồn tại năm điểm A, B, C, D và E cùng nằm trên một đường thẳng sao cho điểm B vừa vừa nằm giữa cặp điểm A và C, vừa nằm giữa cặp điểm D và E.</p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Hình mình hoạ:</p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><img height="54" src="https://img.loigiaihay.com/picture/2022/1020/capture_26.PNG" style="height: auto; margin: 0px; max-height: 100%; max-width: 100%; padding: 0px;" width="321" /></p></div></div><br />Giải bài 4 trang 89 sách bài tập Toán 6 - Chân trời sáng tạo Tập 2<div class="detail_new" style="background-color: white; font-family: OpenSans, Tahoma, Helvetica, sans-serif; font-size: 16px; line-height: 26px; margin: 0px; padding: 0px 5px; word-break: break-word;"><div class="center bottom10" style="margin-bottom: 10px !important; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding: 0px; text-align: center;"><ins class="982a9496" data-key="032300ccaf074f044010600ff650587e" style="margin: 0px; padding: 0px;"></ins></div><div class="post-toc" id="post-toc-container" style="margin: 0px; padding: 0px;"></div><div id="box-content" style="font-size: 18px; line-height: 26px; margin: 0px; padding: 0px; text-align: justify;"><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><strong class="content_question" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Đề bài</strong></p><p align="left" style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Trong hình vẽ dưới đây, điểm B nằm giữa hai điểm nào?</p><div class="content_method_container" style="line-height: 26px; margin: 0px; padding: 10px 0px 2px;"><p class="content_method_header" style="background: rgb(252, 241, 196); border-radius: 5px; cursor: pointer; line-height: 26px; margin: 0px; padding: 10px; text-align: center; word-break: normal;"><strong class="content_method" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Phương pháp giải - Xem chi tiết</strong><img class="method-open-icon" id="method_colapse_icon" src="data:image/png;base64,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" style="float: right; height: auto; margin: 0px; max-height: 100%; max-width: 100%; padding: 0px; position: relative; top: 10px;" /></p><div class="content_method_content" style="border-bottom: 1px dashed rgb(234, 214, 126); border-image: initial; border-left: 1px dashed rgb(234, 214, 126); border-right: 1px dashed rgb(234, 214, 126); border-top: none; line-height: 26px; margin: 0px 0px 10px; padding: 10px 10px 5px;"><p align="left" style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Quan sát các bộ điểm thẳng hàng, có chứa điểm B.</p></div></div><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><strong class="content_detail" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Lời giải chi tiết</strong></p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Điểm B nằm giữa các điểm A và C; A và D, E và F.</p></div></div>Giải bài 5 trang 89 sách bài tập Toán 6 - Chân trời sáng tạo Tập 2<div class="detail_new" style="background-color: white; font-family: OpenSans, Tahoma, Helvetica, sans-serif; font-size: 16px; line-height: 26px; margin: 0px; padding: 0px 5px; word-break: break-word;"><div class="center bottom10" style="margin-bottom: 10px !important; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding: 0px; text-align: center;"><ins class="982a9496" data-key="032300ccaf074f044010600ff650587e" style="margin: 0px; padding: 0px;"></ins></div><div class="post-toc" id="post-toc-container" style="margin: 0px; padding: 0px;"></div><div id="box-content" style="font-size: 18px; line-height: 26px; margin: 0px; padding: 0px; text-align: justify;"><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><strong class="content_question" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Đề bài</strong></p><p align="left" style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Cho bốn điểm A, B, C, D. Trong đó các điểm A, B, C thẳng hàng B, C, D thẳng hàng. Các điểm A, B, C, D có cùng nằm trên một đường thẳng không?</p><div class="content_method_container" style="line-height: 26px; margin: 0px; padding: 10px 0px 2px;"><p class="content_method_header" style="background: rgb(252, 241, 196); border-radius: 5px; cursor: pointer; line-height: 26px; margin: 0px; padding: 10px; text-align: center; word-break: normal;"><strong class="content_method" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Phương pháp giải - Xem chi tiết</strong><img class="method-open-icon" id="method_colapse_icon" src="data:image/png;base64,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" style="float: right; height: auto; margin: 0px; max-height: 100%; max-width: 100%; padding: 0px; position: relative; top: 10px;" /></p><div class="content_method_content" style="border-bottom: 1px dashed rgb(234, 214, 126); border-image: initial; border-left: 1px dashed rgb(234, 214, 126); border-right: 1px dashed rgb(234, 214, 126); border-top: none; line-height: 26px; margin: 0px 0px 10px; padding: 10px 10px 5px;"><p align="left" style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Chỉ ra đường thẳng BC đi qua hai bộ ba điểm A, B, C và B, C, D. Từ đó suy ra 4 điểm cùng nằm trên một đường thẳng (đường thẳng BC)</p></div></div><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><strong class="content_detail" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Lời giải chi tiết</strong></p><p align="left" style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Ta có: A, B, C thẳng hàng, do đó A thuộc đường thẳng BC</p><p align="left" style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Tương tự: B, C, D thẳng hàng, do đó D thuộc đường thẳng BC</p><p align="left" style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Vậy 4 điểm A, B, C, D cùng thuộc đường thẳng BC hay 4 điểm này thẳng hàng.</p></div></div>Giải bài 6 trang 89 sách bài tập Toán 6 - Chân trời sáng tạo Tập 2<div class="detail_new" style="background-color: white; font-family: OpenSans, Tahoma, Helvetica, sans-serif; font-size: 16px; line-height: 26px; margin: 0px; padding: 0px 5px; word-break: break-word;"><div class="center bottom10" style="margin-bottom: 10px !important; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding: 0px; text-align: center;"><ins class="982a9496" data-key="032300ccaf074f044010600ff650587e" style="margin: 0px; padding: 0px;"></ins></div><div class="post-toc" id="post-toc-container" style="margin: 0px; padding: 0px;"></div><div id="box-content" style="font-size: 18px; line-height: 26px; margin: 0px; padding: 0px; text-align: justify;"><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><strong class="content_question" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Đề bài</strong></p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Cho 4 điểm M, N, P, Q như hình bên. Có thể tìm được một điểm K sao cho các điểm M, N, K và P, Q, K đều là các bộ ba điểm thẳng hàng hay không? Nếu có em hãy nêu cách xác định điểm K</p><div class="content_method_container" style="line-height: 26px; margin: 0px; padding: 10px 0px 2px;"><p class="content_method_header" style="background: rgb(252, 241, 196); border-radius: 5px; cursor: pointer; line-height: 26px; margin: 0px; padding: 10px; text-align: center; word-break: normal;"><strong class="content_method" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Phương pháp giải - Xem chi tiết</strong><img class="method-open-icon" id="method_colapse_icon" src="data:image/png;base64,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" style="float: right; height: auto; margin: 0px; max-height: 100%; max-width: 100%; padding: 0px; position: relative; top: 10px;" /></p><div class="content_method_content" style="border-bottom: 1px dashed rgb(234, 214, 126); border-image: initial; border-left: 1px dashed rgb(234, 214, 126); border-right: 1px dashed rgb(234, 214, 126); border-top: none; line-height: 26px; margin: 0px 0px 10px; padding: 10px 10px 5px;"><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Vẽ đường thẳng MN và đường thẳng PQ. Từ hai bộ ba điểm thẳng hàng suy ra K là giao điểm của hai đường thẳng MN và PQ.</p></div></div><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><strong class="content_detail" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Lời giải chi tiết</strong></p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Ta có thể tìm được điểm K sao cho các điểm M, N, K và P, Q, K đều là các bộ ba điểm thẳng hàng</p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Cách xác định: + Vẽ một đường thẳng a đi qua hai điểm M, N và một đường thẳng b đi qua hai điểm P, Q.</p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">+ Kéo dài đường thẳng a và b sao cho cho a và b cắt nhau tại điểm K</p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Ta được các bộ ba điểm M, N, K và P, Q, K là các bộ ba điểm thẳng hàng.</p></div></div>Giải bài 7 trang 89 sách bài tập Toán 6 - Chân trời sáng tạo Tập 2<div class="detail_new" style="background-color: white; font-family: OpenSans, Tahoma, Helvetica, sans-serif; font-size: 16px; line-height: 26px; margin: 0px; padding: 0px 5px; word-break: break-word;"><div class="center bottom10" style="margin-bottom: 10px !important; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding: 0px; text-align: center;"><ins class="982a9496" data-key="032300ccaf074f044010600ff650587e" style="margin: 0px; padding: 0px;"></ins></div><div class="post-toc" id="post-toc-container" style="margin: 0px; padding: 0px;"></div><div id="box-content" style="font-size: 18px; line-height: 26px; margin: 0px; padding: 0px; text-align: justify;"><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><strong class="content_question" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Đề bài</strong></p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Cho hình vuông ABCD. Hãy xác định điểm O sao cho các bộ ba điểm A, O, C và B, D, O đều là các bộ ba điểm thẳng hàng.</p><div class="content_method_container" style="line-height: 26px; margin: 0px; padding: 10px 0px 2px;"><p class="content_method_header" style="background: rgb(252, 241, 196); border-radius: 5px; cursor: pointer; line-height: 26px; margin: 0px; padding: 10px; text-align: center; word-break: normal;"><strong class="content_method" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Phương pháp giải - Xem chi tiết</strong><img class="method-open-icon" id="method_colapse_icon" src="data:image/png;base64,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" style="float: right; height: auto; margin: 0px; max-height: 100%; max-width: 100%; padding: 0px; position: relative; top: 10px;" /></p><div class="content_method_content" style="border-bottom: 1px dashed rgb(234, 214, 126); border-image: initial; border-left: 1px dashed rgb(234, 214, 126); border-right: 1px dashed rgb(234, 214, 126); border-top: none; line-height: 26px; margin: 0px 0px 10px; padding: 10px 10px 5px;"><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Từ hai bộ ba điểm thẳng hàng ta dễ dàng suy ra O là điểm chung của hai đường thẳng AC và BD.</p></div></div><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><strong class="content_detail" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Lời giải chi tiết</strong></p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Điểm O thỏa mãn điều kiện các bộ ba điểm A, O, C và B, D, O đều là các bộ ba điểm thẳng hàng có thể xác định như hình dưới:</p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><img height="186" src="https://img.loigiaihay.com/picture/2022/1020/capture_25.PNG" style="height: auto; margin: 0px; max-height: 100%; max-width: 100%; padding: 0px;" width="159" /></p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Vì ba điểm A, O, C thẳng hàng nên O thuộc đường thẳng AC. Tương tự ta cũng có điểm O thuộc đường thẳng BD. Do đó O là giao điểm của đường thẳng AC và đường thẳng BD.</p></div></div>Giải bài 8 trang 89 sách bài tập Toán 6 - Chân trời sáng tạo Tập 2<div class="detail_new" style="background-color: white; font-family: OpenSans, Tahoma, Helvetica, sans-serif; font-size: 16px; line-height: 26px; margin: 0px; padding: 0px 5px; word-break: break-word;"><div class="center bottom10" style="margin-bottom: 10px !important; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding: 0px; text-align: center;"><ins class="982a9496" data-key="032300ccaf074f044010600ff650587e" style="margin: 0px; padding: 0px;"></ins></div><div class="post-toc" id="post-toc-container" style="margin: 0px; padding: 0px;"></div><div id="box-content" style="font-size: 18px; line-height: 26px; margin: 0px; padding: 0px; text-align: justify;"><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><strong class="content_question" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Đề bài</strong></p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Em hãy tìm hiểu và cho biết Mặt Trăng, Mặt Trời, Trái Đất ở vị trí như thế nào thì xảy ra hiện tượng nhật thực.</p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><strong class="content_detail" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Lời giải chi tiết</strong></p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Hiện tượng nhật thực xảy ra khi Mặt Trăng che khuất hoàn toàn hoặc một phần Mặt trời. Khi đó trời Mặt trăng nằm giữa Trái Đất và Mặt Trời (Mặt Trăng, Mặt Trời, Trái Đất thẳng nhau).</p></div></div>

Bài 2. Ba điểm thẳng hàng. Ba điểm không thẳng hàng

Giải bài 1 trang 88 sách bài tập Toán 6 - Chân trời sáng tạo Tập 2 Đề bài Em hãy chấm ba điểm A, B, C trên giấy. Có những cách nào để kiểm...

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Bài 3. Hai đường thẳng cắt nhau, song song. Tia

<p> </p><br />Giải bài 1 trang 91 sách bài tập Toán 6 - Chân trời sáng tạo Tập 2<div class="detail_new" style="background-color: white; font-family: OpenSans, Tahoma, Helvetica, sans-serif; font-size: 16px; line-height: 26px; margin: 0px; padding: 0px 5px; word-break: break-word;"><div class="center bottom10" style="margin-bottom: 10px !important; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding: 0px; text-align: center;"><ins class="982a9496" data-key="032300ccaf074f044010600ff650587e" style="margin: 0px; padding: 0px;"></ins></div><div class="post-toc" id="post-toc-container" style="margin: 0px; padding: 0px;"></div><div id="box-content" style="font-size: 18px; line-height: 26px; margin: 0px; padding: 0px; text-align: justify;"><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><strong class="content_question" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Đề bài</strong></p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Qua hai điểm A và B cho trước có bao nhiêu đường thẳng? Em hãy chọn phương án đúng.</p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">(A) 1</p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">(B) 2</p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">(C) Nhiều hơn 2</p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">(D) Không có đường thẳng nào</p><div class="content_method_container" style="line-height: 26px; margin: 0px; padding: 10px 0px 2px;"><p class="content_method_header" style="background: rgb(252, 241, 196); border-radius: 5px; cursor: pointer; line-height: 26px; margin: 0px; padding: 10px; text-align: center; word-break: normal;"><strong class="content_method" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Phương pháp giải - Xem chi tiết</strong><img class="method-open-icon" id="method_colapse_icon" src="data:image/png;base64,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" style="float: right; height: auto; margin: 0px; max-height: 100%; max-width: 100%; padding: 0px; position: relative; top: 10px;" /></p><div class="content_method_content" style="border-bottom: 1px dashed rgb(234, 214, 126); border-image: initial; border-left: 1px dashed rgb(234, 214, 126); border-right: 1px dashed rgb(234, 214, 126); border-top: none; line-height: 26px; margin: 0px 0px 10px; padding: 10px 10px 5px;"><p align="left" style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Qua hai điểm cho trước, có duy nhất một đường thẳng.</p></div></div><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><strong class="content_detail" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Lời giải chi tiết</strong></p><p align="left" style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Chọn (A)</p></div></div>Giải bài 2 trang 91 sách bài tập Toán 6 - Chân trời sáng tạo Tập 2<div class="detail_new" style="background-color: white; font-family: OpenSans, Tahoma, Helvetica, sans-serif; font-size: 16px; line-height: 26px; margin: 0px; padding: 0px 5px; word-break: break-word;"><div class="center bottom10" style="margin-bottom: 10px !important; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding: 0px; text-align: center;"><ins class="982a9496" data-key="032300ccaf074f044010600ff650587e" style="margin: 0px; padding: 0px;"></ins></div><div class="post-toc" id="post-toc-container" style="margin: 0px; padding: 0px;"></div><div id="box-content" style="font-size: 18px; line-height: 26px; margin: 0px; padding: 0px; text-align: justify;"><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><strong class="content_question" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Đề bài</strong></p><p align="left" style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Vì sao người ta thường nói “đường thẳng đi qua hai điểm”mà không nói “đường thẳng đi qua 3 điểm”</p><div class="content_method_container" style="line-height: 26px; margin: 0px; padding: 10px 0px 2px;"><p class="content_method_header" style="background: rgb(252, 241, 196); border-radius: 5px; cursor: pointer; line-height: 26px; margin: 0px; padding: 10px; text-align: center; word-break: normal;"><strong class="content_method" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Phương pháp giải - Xem chi tiết</strong><img class="method-open-icon" id="method_colapse_icon" src="data:image/png;base64,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" style="float: right; height: auto; margin: 0px; max-height: 100%; max-width: 100%; padding: 0px; position: relative; top: 10px;" /></p><div class="content_method_content" style="border-bottom: 1px dashed rgb(234, 214, 126); border-image: initial; border-left: 1px dashed rgb(234, 214, 126); border-right: 1px dashed rgb(234, 214, 126); border-top: none; line-height: 26px; margin: 0px 0px 10px; padding: 10px 10px 5px;"><p align="left" style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Chỉ ra số đường thẳng có thể tạo ra bởi 2 điểm, 3 điểm</p></div></div><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><strong class="content_detail" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Lời giải chi tiết</strong></p><p align="left" style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Vì qua hai điểm phân biệt cho trước luôn xác định duy nhất  một đường thẳng.</p><p align="left" style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Qua ba điểm cho trước không phải lúc nào cũng xác định được một đường thẳng.</p></div></div>Giải bài 3 trang 91 sách bài tập Toán 6 - Chân trời sáng tạo Tập 2<div class="detail_new" style="background-color: white; font-family: OpenSans, Tahoma, Helvetica, sans-serif; font-size: 16px; line-height: 26px; margin: 0px; padding: 0px 5px; word-break: break-word;"><div class="center bottom10" style="margin-bottom: 10px !important; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding: 0px; text-align: center;"><ins class="982a9496" data-key="032300ccaf074f044010600ff650587e" style="margin: 0px; padding: 0px;"></ins></div><div class="post-toc" id="post-toc-container" style="margin: 0px; padding: 0px;"></div><div id="box-content" style="font-size: 18px; line-height: 26px; margin: 0px; padding: 0px; text-align: justify;"><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><strong class="content_question" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Đề bài</strong></p><p align="left" style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"> Điền các chữ cắt nhau song song vào chỗ chấm thích hợp</p><p align="left" style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"> a) Hai đường thẳng không có điểm chung nào gọi là hai đường  thẳng …</p><p align="left" style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"> b) Hai đường thẳng có duy nhất một điểm chung gọi là hai đường thẳng …</p><div class="content_method_container" style="line-height: 26px; margin: 0px; padding: 10px 0px 2px;"><p class="content_method_header" style="background: rgb(252, 241, 196); border-radius: 5px; cursor: pointer; line-height: 26px; margin: 0px; padding: 10px; text-align: center; word-break: normal;"><strong class="content_method" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Phương pháp giải - Xem chi tiết</strong><img class="method-open-icon" id="method_colapse_icon" src="data:image/png;base64,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" style="float: right; height: auto; margin: 0px; max-height: 100%; max-width: 100%; padding: 0px; position: relative; top: 10px;" /></p><div class="content_method_content" style="border-bottom: 1px dashed rgb(234, 214, 126); border-image: initial; border-left: 1px dashed rgb(234, 214, 126); border-right: 1px dashed rgb(234, 214, 126); border-top: none; line-height: 26px; margin: 0px 0px 10px; padding: 10px 10px 5px;"><p align="left" style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">a) Hai đường thẳng không có điểm chung nào gọi là hai đường  thẳng song song</p><p align="left" style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">b) Hai đường thẳng có duy nhất một điểm chung gọi là hai đường thẳng cắt nhau</p></div></div><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><strong class="content_detail" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Lời giải chi tiết</strong></p><p align="left" style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">a) song song</p><p align="left" style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">b) cắt nhau</p></div></div>Giải bài 4 trang 91 sách bài tập Toán 6 - Chân trời sáng tạo Tập 2<div class="detail_new" style="background-color: white; font-family: OpenSans, Tahoma, Helvetica, sans-serif; font-size: 16px; line-height: 26px; margin: 0px; padding: 0px 5px; word-break: break-word;"><div class="center bottom10" style="margin-bottom: 10px !important; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding: 0px; text-align: center;"><ins class="982a9496" data-key="032300ccaf074f044010600ff650587e" style="margin: 0px; padding: 0px;"></ins></div><div class="post-toc" id="post-toc-container" style="margin: 0px; padding: 0px;"></div><div id="box-content" style="font-size: 18px; line-height: 26px; margin: 0px; padding: 0px; text-align: justify;"><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><strong class="content_question" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Đề bài</strong></p><p align="left" style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Cho 3 điểm phân biệt không thẳng hàng. Em hãy vẽ một đường thẳng đi qua hai trong số ba điểm đó, rồi vẽ tiếp đường thẳng thứ hai đi qua điểm còn lại và song song với đường thẳng vừa vẽ.</p><div class="content_method_container" style="line-height: 26px; margin: 0px; padding: 10px 0px 2px;"><p class="content_method_header" style="background: rgb(252, 241, 196); border-radius: 5px; cursor: pointer; line-height: 26px; margin: 0px; padding: 10px; text-align: center; word-break: normal;"><strong class="content_method" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Phương pháp giải - Xem chi tiết</strong><img class="method-open-icon" id="method_colapse_icon" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAAGCAYAAAD68A/GAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAA2ZpVFh0WE1MOmNvbS5hZG9iZS54bXAAAAAAADw/eHBhY2tldCBiZWdpbj0i77u/IiBpZD0iVzVNME1wQ2VoaUh6cmVTek5UY3prYzlkIj8+IDx4OnhtcG1ldGEgeG1sbnM6eD0iYWRvYmU6bnM6bWV0YS8iIHg6eG1wdGs9IkFkb2JlIFhNUCBDb3JlIDUuMy1jMDExIDY2LjE0NTY2MSwgMjAxMi8wMi8wNi0xNDo1NjoyNyAgICAgICAgIj4gPHJkZjpSREYgeG1sbnM6cmRmPSJodHRwOi8vd3d3LnczLm9yZy8xOTk5LzAyLzIyLXJkZi1zeW50YXgtbnMjIj4gPHJkZjpEZXNjcmlwdGlvbiByZGY6YWJvdXQ9IiIgeG1sbnM6eG1wTU09Imh0dHA6Ly9ucy5hZG9iZS5jb20veGFwLzEuMC9tbS8iIHhtbG5zOnN0UmVmPSJodHRwOi8vbnMuYWRvYmUuY29tL3hhcC8xLjAvc1R5cGUvUmVzb3VyY2VSZWYjIiB4bWxuczp4bXA9Imh0dHA6Ly9ucy5hZG9iZS5jb20veGFwLzEuMC8iIHhtcE1NOk9yaWdpbmFsRG9jdW1lbnRJRD0ieG1wLmRpZDoxM0UzREU1OEVDMzZFODExQkQ5N0VEMEYzMTQyQzg0NSIgeG1wTU06RG9jdW1lbnRJRD0ieG1wLmRpZDo5NTFEMTQyQTM3QUExMUU4OTg2OUQ0MzRDMEZGNkVBQiIgeG1wTU06SW5zdGFuY2VJRD0ieG1wLmlpZDo5NTFEMTQyOTM3QUExMUU4OTg2OUQ0MzRDMEZGNkVBQiIgeG1wOkNyZWF0b3JUb29sPSJBZG9iZSBQaG90b3Nob3AgQ1M2IChXaW5kb3dzKSI+IDx4bXBNTTpEZXJpdmVkRnJvbSBzdFJlZjppbnN0YW5jZUlEPSJ4bXAuaWlkOjEzRTNERTU4RUMzNkU4MTFCRDk3RUQwRjMxNDJDODQ1IiBzdFJlZjpkb2N1bWVudElEPSJ4bXAuZGlkOjEzRTNERTU4RUMzNkU4MTFCRDk3RUQwRjMxNDJDODQ1Ii8+IDwvcmRmOkRlc2NyaXB0aW9uPiA8L3JkZjpSREY+IDwveDp4bXBtZXRhPiA8P3hwYWNrZXQgZW5kPSJyIj8+eFCcKwAAAHdJREFUeNpiDA0NvcXAwDAbiLsZsINSIE5lAhIbgbgLiLOxKMqGym1iARJlQCwAxJOB+AsQL4QqioeKzQWZClL4H4gzgJgbKvgVqhDEXgnE6SA1LFDBv1ATQIqXQsW2QsVAcgwsSO75DcShIPdA+WFA/AsmCRBgAO7AGQt+AUtuAAAAAElFTkSuQmCC" style="float: right; height: auto; margin: 0px; max-height: 100%; max-width: 100%; padding: 0px; position: relative; top: 10px;" /></p><div class="content_method_content" style="border-bottom: 1px dashed rgb(234, 214, 126); border-image: initial; border-left: 1px dashed rgb(234, 214, 126); border-right: 1px dashed rgb(234, 214, 126); border-top: none; line-height: 26px; margin: 0px 0px 10px; padding: 10px 10px 5px;"><p align="left" style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Lấy ba điểm A, B, C không thẳng hàng. Vẽ đường thẳng AB, sau đó vẽ đường thẳng d đi qua C và song song với đường thẳng AB.</p></div></div><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><strong class="content_detail" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Lời giải chi tiết</strong></p><p align="left" style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Giả sử ba điểm phân biệt A, B, C không thẳng ảnh hàng. Ta có hình vẽ sau:</p><p align="left" style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><img height="155" src="https://img.loigiaihay.com/picture/2022/1020/capture_24.PNG" style="height: auto; margin: 0px; max-height: 100%; max-width: 100%; padding: 0px;" width="277" /></p></div></div>Giải bài 5 trang 91 sách bài tập Toán 6 - Chân trời sáng tạo Tập 2<div class="detail_new" style="background-color: white; font-family: OpenSans, Tahoma, Helvetica, sans-serif; font-size: 16px; line-height: 26px; margin: 0px; padding: 0px 5px; word-break: break-word;"><div class="center bottom10" style="margin-bottom: 10px !important; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding: 0px; text-align: center;"><ins class="982a9496" data-key="032300ccaf074f044010600ff650587e" style="margin: 0px; padding: 0px;"></ins></div><div class="post-toc" id="post-toc-container" style="margin: 0px; padding: 0px;"></div><div id="box-content" style="font-size: 18px; line-height: 26px; margin: 0px; padding: 0px; text-align: justify;"><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><strong class="content_question" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Đề bài</strong></p><p align="left" style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Cho 4 đường thẳng a, b, c, d trong đó có ba đường thẳng a, b, c cắt nhau tại một điểm. Các đường thẳng b, c, d cắt nhau tại một điểm. Bốn đường thẳng a, b, c, d có cắt nhau tại một điểm hay không? Vì sao?</p><div class="content_method_container" style="line-height: 26px; margin: 0px; padding: 10px 0px 2px;"><p class="content_method_header" style="background: rgb(252, 241, 196); border-radius: 5px; cursor: pointer; line-height: 26px; margin: 0px; padding: 10px; text-align: center; word-break: normal;"><strong class="content_method" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Phương pháp giải - Xem chi tiết</strong><img class="method-open-icon" id="method_colapse_icon" src="data:image/png;base64,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" style="float: right; height: auto; margin: 0px; max-height: 100%; max-width: 100%; padding: 0px; position: relative; top: 10px;" /></p><div class="content_method_content" style="border-bottom: 1px dashed rgb(234, 214, 126); border-image: initial; border-left: 1px dashed rgb(234, 214, 126); border-right: 1px dashed rgb(234, 214, 126); border-top: none; line-height: 26px; margin: 0px 0px 10px; padding: 10px 10px 5px;"><p align="left" style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Tìm số điểm chung của 4 đường thẳng.</p></div></div><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><strong class="content_detail" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Lời giải chi tiết</strong></p><p align="left" style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Bốn đường thẳng a, b, c, d cắt nhau tại một điểm.</p><p align="left" style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Vì giả sử ba đường thẳng a, b, c cắt nhau tại điểm A. Ta có hai đường thẳng b, c cắt nhau duy nhất tại điểm A. Mà đường thẳng d cắt đường thẳng b và đường thẳng c tại một điểm. Nên đường thẳng d cắt đường thẳng b, c tại điểm A.</p><p align="left" style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Khi đó bốn đường thẳng a, b, c, d cùng cắt nhau tại điểm A</p><p align="left" style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><img height="276" src="https://img.loigiaihay.com/picture/2022/1020/capture_23.PNG" style="height: auto; margin: 0px; max-height: 100%; max-width: 100%; padding: 0px;" width="307" /></p></div></div><br />Giải bài 6 trang 91 sách bài tập Toán 6 - Chân trời sáng tạo Tập 2<div class="detail_new" style="background-color: white; font-family: OpenSans, Tahoma, Helvetica, sans-serif; font-size: 16px; line-height: 26px; margin: 0px; padding: 0px 5px; word-break: break-word;"><div class="center bottom10" style="margin-bottom: 10px !important; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding: 0px; text-align: center;"><ins class="982a9496" data-key="032300ccaf074f044010600ff650587e" style="margin: 0px; padding: 0px;"></ins></div><div class="post-toc" id="post-toc-container" style="margin: 0px; padding: 0px;"></div><div id="box-content" style="font-size: 18px; line-height: 26px; margin: 0px; padding: 0px; text-align: justify;"><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><strong class="content_question" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Đề bài</strong></p><p align="left" style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Hãy vẽ 3 đường thẳng sao cho thứ hai trong số 3 đường thẳng đó đều cắt nhau. Ký hiệu các giao điểm của các đường thẳng đó. Có bao nhiêu giao điểm được tạo thành?</p><div class="content_method_container" style="line-height: 26px; margin: 0px; padding: 10px 0px 2px;"><p class="content_method_header" style="background: rgb(252, 241, 196); border-radius: 5px; cursor: pointer; line-height: 26px; margin: 0px; padding: 10px; text-align: center; word-break: normal;"><strong class="content_method" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Phương pháp giải - Xem chi tiết</strong><img class="method-open-icon" id="method_colapse_icon" src="data:image/png;base64,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" style="float: right; height: auto; margin: 0px; max-height: 100%; max-width: 100%; padding: 0px; position: relative; top: 10px;" /></p><div class="content_method_content" style="border-bottom: 1px dashed rgb(234, 214, 126); border-image: initial; border-left: 1px dashed rgb(234, 214, 126); border-right: 1px dashed rgb(234, 214, 126); border-top: none; line-height: 26px; margin: 0px 0px 10px; padding: 10px 10px 5px;"><p align="left" style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Vẽ và ký hiệu các điểm giao. Đếm số giao điểm được tạo thành.</p></div></div><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><strong class="content_detail" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Lời giải chi tiết</strong></p><p align="left" style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Trường hợp 1: Có 3 giao điểm</p><p align="left" style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><img height="202" src="https://img.loigiaihay.com/picture/2022/1020/capture_20.PNG" style="height: auto; margin: 0px; max-height: 100%; max-width: 100%; padding: 0px;" width="334" /></p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"> Trường hợp 2: Có 1 giao điểm</p><p align="left" style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><img height="230" src="https://img.loigiaihay.com/picture/2022/1020/capture_21.PNG" style="height: auto; margin: 0px; max-height: 100%; max-width: 100%; padding: 0px;" width="286" /></p></div></div><br />Giải bài 7 trang 91 sách bài tập Toán 6 - Chân trời sáng tạo Tập 2<div class="detail_new" style="background-color: white; font-family: OpenSans, Tahoma, Helvetica, sans-serif; font-size: 16px; line-height: 26px; margin: 0px; padding: 0px 5px; word-break: break-word;"><div class="center bottom10" style="margin-bottom: 10px !important; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding: 0px; text-align: center;"><ins class="982a9496" data-key="032300ccaf074f044010600ff650587e" style="margin: 0px; padding: 0px;"></ins></div><div class="post-toc" id="post-toc-container" style="margin: 0px; padding: 0px;"></div><div id="box-content" style="font-size: 18px; line-height: 26px; margin: 0px; padding: 0px; text-align: justify;"><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><strong class="content_question" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Đề bài</strong></p><p align="left" style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">a) Có bao nhiêu giao điểm được tạo bởi 3 điểm thẳng? Hãy vẽ hình trong mỗi trường hợp đó.</p><p align="left" style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">b) So sánh hai phân số ở câu a) và cho biết ý nghĩa thực tiễn của kết quả so sánh.</p><div class="content_method_container" style="line-height: 26px; margin: 0px; padding: 10px 0px 2px;"><p class="content_method_header" style="background: rgb(252, 241, 196); border-radius: 5px; cursor: pointer; line-height: 26px; margin: 0px; padding: 10px; text-align: center; word-break: normal;"><strong class="content_method" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Phương pháp giải - Xem chi tiết</strong><img class="method-open-icon" id="method_colapse_icon" src="data:image/png;base64,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" style="float: right; height: auto; margin: 0px; max-height: 100%; max-width: 100%; padding: 0px; position: relative; top: 10px;" /></p><div class="content_method_content" style="border-bottom: 1px dashed rgb(234, 214, 126); border-image: initial; border-left: 1px dashed rgb(234, 214, 126); border-right: 1px dashed rgb(234, 214, 126); border-top: none; line-height: 26px; margin: 0px 0px 10px; padding: 10px 10px 5px;"><p align="left" style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Vẽ hai đường thẳng trước (hai trường hợp: song song hoặc cắt nhau). Ở mỗi trường hợp: tiếp tục vẽ thêm một đường thẳng ( song song với một hoặc hai đường hoặc cắt cả hai đường)</p></div></div><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><strong class="content_detail" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Lời giải chi tiết</strong></p><p align="left" style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Trường hợp 1: có một giao điểm:</p><p align="left" style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><img height="202" src="https://img.loigiaihay.com/picture/2022/1020/capture_13.PNG" style="height: auto; margin: 0px; max-height: 100%; max-width: 100%; padding: 0px;" width="237" /></p><p align="left" style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"> Trường hợp 2: có hai giao điểm</p><p align="left" style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><img height="143" src="https://img.loigiaihay.com/picture/2022/1020/capture_14.PNG" style="height: auto; margin: 0px; max-height: 100%; max-width: 100%; padding: 0px;" width="272" /></p><p align="left" style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"> Trường hợp 3: có 3 giao điểm</p><p align="left" style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><img height="197" src="https://img.loigiaihay.com/picture/2022/1020/capture_15.PNG" style="height: auto; margin: 0px; max-height: 100%; max-width: 100%; padding: 0px;" width="316" /></p><p align="left" style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"> Trường hợp 4: không có giao điểm nào</p><p align="left" style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><img height="120" src="https://img.loigiaihay.com/picture/2022/1020/capture_16.PNG" style="height: auto; margin: 0px; max-height: 100%; max-width: 100%; padding: 0px;" width="338" /></p></div></div><br />Giải bài 8 trang 91 sách bài tập Toán 6 - Chân trời sáng tạo Tập 2<div class="detail_new" style="background-color: white; font-family: OpenSans, Tahoma, Helvetica, sans-serif; font-size: 16px; line-height: 26px; margin: 0px; padding: 0px 5px; word-break: break-word;"><div class="center bottom10" style="margin-bottom: 10px !important; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding: 0px; text-align: center;"><ins class="982a9496" data-key="032300ccaf074f044010600ff650587e" style="margin: 0px; padding: 0px;"></ins></div><div class="post-toc" id="post-toc-container" style="margin: 0px; padding: 0px;"></div><div id="box-content" style="font-size: 18px; line-height: 26px; margin: 0px; padding: 0px; text-align: justify;"><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><strong class="content_question" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Đề bài</strong></p><p align="left" style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Cho bốn điểm A, B, C, D như hình vẽ bên. Có bao nhiêu tia được tạo thành nếu mỗi tia đều chứa 2 trong số các điểm đó?</p><div class="content_method_container" style="line-height: 26px; margin: 0px; padding: 10px 0px 2px;"><p class="content_method_header" style="background: rgb(252, 241, 196); border-radius: 5px; cursor: pointer; line-height: 26px; margin: 0px; padding: 10px; text-align: center; word-break: normal;"><strong class="content_method" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Phương pháp giải - Xem chi tiết</strong><img class="method-open-icon" id="method_colapse_icon" src="data:image/png;base64,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" style="float: right; height: auto; margin: 0px; max-height: 100%; max-width: 100%; padding: 0px; position: relative; top: 10px;" /></p><div class="content_method_content" style="border-bottom: 1px dashed rgb(234, 214, 126); border-image: initial; border-left: 1px dashed rgb(234, 214, 126); border-right: 1px dashed rgb(234, 214, 126); border-top: none; line-height: 26px; margin: 0px 0px 10px; padding: 10px 10px 5px;"><p align="left" style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Với mỗi điểm: Nối điểm đó với 1 trong 3 điểm còn lại ta được một tia. Vậy ta được 3 tia.</p><p align="left" style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Có 4 điểm như vậy, nên ta có tổng 12 tia tạo thành từ 4 điểm</p></div></div><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><strong class="content_detail" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Lời giải chi tiết</strong></p><p align="left" style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Với bốn điểm A, B, C, D có 12 tia được tạo thành: AB, AC, AD, BA, BC, BD, CA, CB, CD, DA, DB, DC.</p></div></div><br />Giải bài 9 trang 91 sách bài tập Toán 6 - Chân trời sáng tạo Tập 2<div class="detail_new" style="background-color: white; font-family: OpenSans, Tahoma, Helvetica, sans-serif; font-size: 16px; line-height: 26px; margin: 0px; padding: 0px 5px; word-break: break-word;"><div class="center bottom10" style="margin-bottom: 10px !important; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding: 0px; text-align: center;"><ins class="982a9496" data-key="032300ccaf074f044010600ff650587e" style="margin: 0px; padding: 0px;"></ins></div><div class="post-toc" id="post-toc-container" style="margin: 0px; padding: 0px;"></div><div id="box-content" style="font-size: 18px; line-height: 26px; margin: 0px; padding: 0px; text-align: justify;"><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><strong class="content_question" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Đề bài</strong></p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Hai đường thẳng cắt nhau tạo ra mấy tia? Hãy đặt tên cho các tia đó.</p><div class="content_method_container" style="line-height: 26px; margin: 0px; padding: 10px 0px 2px;"><p class="content_method_header" style="background: rgb(252, 241, 196); border-radius: 5px; cursor: pointer; line-height: 26px; margin: 0px; padding: 10px; text-align: center; word-break: normal;"><strong class="content_method" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Phương pháp giải - Xem chi tiết</strong><img class="method-open-icon" id="method_colapse_icon" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAAGCAYAAAD68A/GAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAA2ZpVFh0WE1MOmNvbS5hZG9iZS54bXAAAAAAADw/eHBhY2tldCBiZWdpbj0i77u/IiBpZD0iVzVNME1wQ2VoaUh6cmVTek5UY3prYzlkIj8+IDx4OnhtcG1ldGEgeG1sbnM6eD0iYWRvYmU6bnM6bWV0YS8iIHg6eG1wdGs9IkFkb2JlIFhNUCBDb3JlIDUuMy1jMDExIDY2LjE0NTY2MSwgMjAxMi8wMi8wNi0xNDo1NjoyNyAgICAgICAgIj4gPHJkZjpSREYgeG1sbnM6cmRmPSJodHRwOi8vd3d3LnczLm9yZy8xOTk5LzAyLzIyLXJkZi1zeW50YXgtbnMjIj4gPHJkZjpEZXNjcmlwdGlvbiByZGY6YWJvdXQ9IiIgeG1sbnM6eG1wTU09Imh0dHA6Ly9ucy5hZG9iZS5jb20veGFwLzEuMC9tbS8iIHhtbG5zOnN0UmVmPSJodHRwOi8vbnMuYWRvYmUuY29tL3hhcC8xLjAvc1R5cGUvUmVzb3VyY2VSZWYjIiB4bWxuczp4bXA9Imh0dHA6Ly9ucy5hZG9iZS5jb20veGFwLzEuMC8iIHhtcE1NOk9yaWdpbmFsRG9jdW1lbnRJRD0ieG1wLmRpZDoxM0UzREU1OEVDMzZFODExQkQ5N0VEMEYzMTQyQzg0NSIgeG1wTU06RG9jdW1lbnRJRD0ieG1wLmRpZDo5NTFEMTQyQTM3QUExMUU4OTg2OUQ0MzRDMEZGNkVBQiIgeG1wTU06SW5zdGFuY2VJRD0ieG1wLmlpZDo5NTFEMTQyOTM3QUExMUU4OTg2OUQ0MzRDMEZGNkVBQiIgeG1wOkNyZWF0b3JUb29sPSJBZG9iZSBQaG90b3Nob3AgQ1M2IChXaW5kb3dzKSI+IDx4bXBNTTpEZXJpdmVkRnJvbSBzdFJlZjppbnN0YW5jZUlEPSJ4bXAuaWlkOjEzRTNERTU4RUMzNkU4MTFCRDk3RUQwRjMxNDJDODQ1IiBzdFJlZjpkb2N1bWVudElEPSJ4bXAuZGlkOjEzRTNERTU4RUMzNkU4MTFCRDk3RUQwRjMxNDJDODQ1Ii8+IDwvcmRmOkRlc2NyaXB0aW9uPiA8L3JkZjpSREY+IDwveDp4bXBtZXRhPiA8P3hwYWNrZXQgZW5kPSJyIj8+eFCcKwAAAHdJREFUeNpiDA0NvcXAwDAbiLsZsINSIE5lAhIbgbgLiLOxKMqGym1iARJlQCwAxJOB+AsQL4QqioeKzQWZClL4H4gzgJgbKvgVqhDEXgnE6SA1LFDBv1ATQIqXQsW2QsVAcgwsSO75DcShIPdA+WFA/AsmCRBgAO7AGQt+AUtuAAAAAElFTkSuQmCC" style="float: right; height: auto; margin: 0px; max-height: 100%; max-width: 100%; padding: 0px; position: relative; top: 10px;" /></p><div class="content_method_content" style="border-bottom: 1px dashed rgb(234, 214, 126); border-image: initial; border-left: 1px dashed rgb(234, 214, 126); border-right: 1px dashed rgb(234, 214, 126); border-top: none; line-height: 26px; margin: 0px 0px 10px; padding: 10px 10px 5px;"><p align="left" style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Gọi giao điểm của hai đường thẳng là O. Đếm số tia được tạo thành (điểm O chia mỗi đường thẳng thành hai phần, mỗi phần là một tia gốc O)</p></div></div><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><strong class="content_detail" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Lời giải chi tiết</strong></p><p align="left" style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Gọi hai đường thẳng lần lượt là AB và MN, cắt nhau tại điểm O như hình dưới</p><p align="left" style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Điểm O chia đường thẳng AB thành hai phần là tia OA và tia OB, chia đường thẳng MN thành hai phần là tia OM và tia ON</p><p align="left" style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Vậy 4 tia được tạo thành là: OA, OB, OM, ON.</p><p align="left" style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><img height="194" src="https://img.loigiaihay.com/picture/2022/1020/capture_11.PNG" style="height: auto; margin: 0px; max-height: 100%; max-width: 100%; padding: 0px;" width="364" /></p></div></div><br />Giải bài 10 trang 91 sách bài tập Toán 6 - Chân trời sáng tạo Tập 2<div class="detail_new" style="background-color: white; font-family: OpenSans, Tahoma, Helvetica, sans-serif; font-size: 16px; line-height: 26px; margin: 0px; padding: 0px 5px; word-break: break-word;"><div class="center bottom10" style="margin-bottom: 10px !important; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding: 0px; text-align: center;"><ins class="982a9496" data-key="032300ccaf074f044010600ff650587e" style="margin: 0px; padding: 0px;"></ins></div><div class="post-toc" id="post-toc-container" style="margin: 0px; padding: 0px;"></div><div id="box-content" style="font-size: 18px; line-height: 26px; margin: 0px; padding: 0px; text-align: justify;"><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><strong class="content_question" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Đề bài</strong></p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Hãy vẽ hình tương ứng trong mỗi trường hợp sau:</p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">a) Tia MN</p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">b) Tia NM</p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">c) Đường thẳng MN</p><div class="content_method_container" style="line-height: 26px; margin: 0px; padding: 10px 0px 2px;"><p class="content_method_header" style="background: rgb(252, 241, 196); border-radius: 5px; cursor: pointer; line-height: 26px; margin: 0px; padding: 10px; text-align: center; word-break: normal;"><strong class="content_method" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Phương pháp giải - Xem chi tiết</strong><img class="method-open-icon" id="method_colapse_icon" src="data:image/png;base64,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" style="float: right; height: auto; margin: 0px; max-height: 100%; max-width: 100%; padding: 0px; position: relative; top: 10px;" /></p><div class="content_method_content" style="border-bottom: 1px dashed rgb(234, 214, 126); border-image: initial; border-left: 1px dashed rgb(234, 214, 126); border-right: 1px dashed rgb(234, 214, 126); border-top: none; line-height: 26px; margin: 0px 0px 10px; padding: 10px 10px 5px;"><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"> </p><p align="left" style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">+ Vẽ tia MN: bắt đầu từ điểm M (M là gốc), nối M với N và kéo dài qua điểm N.</p><p align="left" style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">+ Vẽ đường thẳng MN: Chấm hai điểm MN, kẻ một đường thẳng từ M tới N và kéo dài về cả hai phía. </p></div></div><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><strong class="content_detail" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Lời giải chi tiết</strong></p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">a) Tia MN</p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><img height="66" src="https://img.loigiaihay.com/picture/2022/1020/capture_8.PNG" style="height: auto; margin: 0px; max-height: 100%; max-width: 100%; padding: 0px;" width="431" /></p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">b) Tia NM</p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><img height="56" src="https://img.loigiaihay.com/picture/2022/1020/capture_9.PNG" style="height: auto; margin: 0px; max-height: 100%; max-width: 100%; padding: 0px;" width="490" /></p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">c) Đường thẳng MN</p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><img height="49" src="https://img.loigiaihay.com/picture/2022/1020/capture_10.PNG" style="height: auto; margin: 0px; max-height: 100%; max-width: 100%; padding: 0px;" width="499" /></p></div></div>Giải bài 11 trang 91 sách bài tập Toán 6 - Chân trời sáng tạo Tập 2<div class="detail_new" style="background-color: white; font-family: OpenSans, Tahoma, Helvetica, sans-serif; font-size: 16px; line-height: 26px; margin: 0px; padding: 0px 5px; word-break: break-word;"><div class="center bottom10" style="margin-bottom: 10px !important; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding: 0px; text-align: center;"><ins class="982a9496" data-key="032300ccaf074f044010600ff650587e" style="margin: 0px; padding: 0px;"></ins></div><div class="post-toc" id="post-toc-container" style="margin: 0px; padding: 0px;"></div><div id="box-content" style="font-size: 18px; line-height: 26px; margin: 0px; padding: 0px; text-align: justify;"><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><strong class="content_question" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Đề bài</strong></p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Cho điểm P không nằm trên đường thẳng MN. Vẽ tia Px cắt đường thẳng MN tại điểm K sao cho điểm M nằm giữa K và N.</p><div class="content_method_container" style="line-height: 26px; margin: 0px; padding: 10px 0px 2px;"><p class="content_method_header" style="background: rgb(252, 241, 196); border-radius: 5px; cursor: pointer; line-height: 26px; margin: 0px; padding: 10px; text-align: center; word-break: normal;"><strong class="content_method" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Phương pháp giải - Xem chi tiết</strong><img class="method-open-icon" id="method_colapse_icon" src="data:image/png;base64,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" style="float: right; height: auto; margin: 0px; max-height: 100%; max-width: 100%; padding: 0px; position: relative; top: 10px;" /></p><div class="content_method_content" style="border-bottom: 1px dashed rgb(234, 214, 126); border-image: initial; border-left: 1px dashed rgb(234, 214, 126); border-right: 1px dashed rgb(234, 214, 126); border-top: none; line-height: 26px; margin: 0px 0px 10px; padding: 10px 10px 5px;"><p align="left" style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Bước 1: Vẽ đường thẳng MN và điểm P nằm ngoài đường thẳng đó.</p><p align="left" style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Bước 2: Lấy điểm K trên đường thẳng MN sao cho K không nằm giữa M và N.</p><p align="left" style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Vẽ tia PK, kí hiệu thành Px.</p></div></div><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><strong class="content_detail" style="font-family: OpenSansBold; margin: 0px; padding: 0px;">Lời giải chi tiết</strong></p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;">Ta có thể vẽ hình như sau:</p><p style="line-height: 26px; margin: 0px 0px 12px; padding: 0px; word-break: normal;"><img height="253" src="https://img.loigiaihay.com/picture/2022/1020/2022-10-20-091329.png" style="height: auto; margin: 0px; max-height: 100%; max-width: 100%; padding: 0px;" width="354" /> </p></div></div>

Bài 3. Hai đường thẳng cắt nhau, song song. Tia

Giải bài 1 trang 91 sách bài tập Toán 6 - Chân trời sáng tạo Tập 2 Đề bài Qua hai điểm A và B cho trước có bao nhiêu đường thẳng? Em hãy c...

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