1 . 如图,在等腰
中,
,点
是线段
上一点,过点
作
交
于点
,且
,
,则
( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/3/51566a83-f25e-4c0e-9b93-7f7fd8d752ef.png?resizew=158)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b10134e7a46e6f6f7cb9d5e2371727d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c0aa4c793921fdaa5d430cb90d78ca6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba11242dcc61d3c7c3555b598b5fdc89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27bb421b8fb47716b09ea7367a8a6a42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9b5c0e0724cce5c25a88dca5e9220c2.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/3/51566a83-f25e-4c0e-9b93-7f7fd8d752ef.png?resizew=158)
A.![]() | B.![]() | C.![]() | D.![]() |
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名校
2 . 满足下列条件时,
不是直角三角形的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2024-03-03更新
|
322次组卷
|
9卷引用:四川省成都市青羊区泡桐树中学2023-2024学年八年级上学期期末数学试题
四川省成都市青羊区泡桐树中学2023-2024学年八年级上学期期末数学试题山东省德州市宁津县大曹镇大赵中学2023-2024学年八年级下学期第一次月考数学试题山东省宁津县大赵中学2023-2024学年八年级下学期第一次月考数学试题内蒙古自治区通辽市霍林郭勒市第五中学2023-2024学年八年级下学期3月月考数学试题安徽省安庆市怀宁县2023-2024学年八年级下学期期中数学试题广东省广州市执信中学2023-2024学年八年级下学期期中数学试题黑龙江省绥化市绥棱县第六中学2023-2024学年八年级下学期第二次月考数学试题(已下线)专题02 勾股定理与勾股定理逆定理之九大题型-备战2023-2024学年八年级数学下学期期末真题分类汇编(人教版)(已下线)第1章 三角形的证明易错(11个考点50题专练)-2023-2024学年八年级数学下学期考试满分全攻略高频考点+重难点讲练与测试(北师大版)
3 .
,若
,
,则
等于_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ca10806fc8c3c3efd6859f526b76900.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b36903e8133c2d4f8cb237f89ca00e6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad03755999be24fa7b6fcc2b0245e71f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/194741f4d2ae7ee44cafca780361446a.png)
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4 . 如图,
中,
,
,
,则
等于______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3393b3590c1b09bca24ee67cfb592315.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d8d9a8fc8cc7852df70b3f1a7c80138.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/105068b25f5a63af32f4082cfe08691e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d3e081637bcea5368cc72370bae283b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/1/0e7eb762-d591-4b84-869f-198585f6b792.png?resizew=156)
您最近一年使用:0次
2024-03-02更新
|
55次组卷
|
2卷引用:四川省成都市金牛区2023-2024学年八年级上学期期末数学试题
5 . 如图,在
中,
,
.点
在
边上(不与点
,
重合),连接
,过点
作
的垂线交过点
且垂直于
的直线于点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/29/cdbc3968-ba16-47a4-8393-716b6870fdf9.jpg?resizew=192)
(1)求证:
;
(2)试探索线段
,
,
之间有何数量关系?写出你结论,并证明;
(3)若点
在
的延长线上,那么线段
,
,
之间又有何数量关系?请直接写出你结论,不用证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b10134e7a46e6f6f7cb9d5e2371727d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/29/cdbc3968-ba16-47a4-8393-716b6870fdf9.jpg?resizew=192)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4253b380bfabd7dbde874b3e9cafb76.png)
(2)试探索线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dea2ae9d515f9ab351ad72306b776ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
(3)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dea2ae9d515f9ab351ad72306b776ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
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2024-03-01更新
|
116次组卷
|
2卷引用:四川省成都市成华区2023-2024学年八年级上学期期末数学试题
6 . 等腰三角形的一个角为
,则它的顶角为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d36581140ebac5d28438ea63b1b23b65.png)
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2024-02-29更新
|
65次组卷
|
3卷引用:四川省凉山彝族自治州2023-2024学年八年级上学期期末数学试题
四川省凉山彝族自治州2023-2024学年八年级上学期期末数学试题江苏省南京市浦口区南京明道学校 2023-2024学年八年级上学期10月月考数学试题(已下线)北师大版七年级期末真题必刷常考60题(60个考点专练)-2023-2024学年七年级数学下学期考试满分全攻略高频考点+重难点讲练与测试(北师大版)
7 . 如图,
在
边上,
,
,则
的度数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f03a43549ab71f0998fffbcb48397b00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e1df9f0b80d85d8e6ac7b1cc052d054.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23dc2d2dd56fcc67698c45a6e0e48f80.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/28/e813439a-36e0-4dca-acb5-c473009f2176.png?resizew=178)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
8 . 如图,在
中,
,点D、E、F分别在AB、BC、AC边上,且
,
.
是等腰三角形;
(2)当
时,求
的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e53497af8899cb299d762f1a4f46a55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f805768a5ffaf8bdfa4bc3b680aafdc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72cb97395ebc5ee1b212afb7a97b985c.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee54b9b398ce80cd054b56173fe810f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b3b0b11a80e8b107e55534d7fda9f2b.png)
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2024-02-28更新
|
148次组卷
|
4卷引用:四川省乐山市市中区2023-2024学年八年级上学期期末数学试题
四川省乐山市市中区2023-2024学年八年级上学期期末数学试题广东省茂名市高州市高州市第一中学附属实验中学2023-2024学年八年级下学期月考数学试题(已下线)专题01+等腰三角形与直角三角形01(9大题型+优选提升题)-备战2023-2024学年八年级数学下学期期末真题分类汇编(北师大版)2024年湖南省初中学业水平考试数学模拟试卷
9 . 如图,在
中,
,
,D为
上一点,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/802a939a9ab14a1a762a4275c9ec6899.png)
_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2677ee9264fd2b6338e4ed853c91e320.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f5fc4ad65b723b6a8da4c8dac154e6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/802a939a9ab14a1a762a4275c9ec6899.png)
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10 . 已知图中的两个三角形全等,则
的度数是( )
![](https://img.xkw.com/dksih/QBM/2024/2/1/3423804115755008/3440990016962560/STEM/2f9ecb4077b940dd9350bbca8399285c.png?resizew=260)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5b69d40b75d582c4b8ffa2369af1d41.png)
![](https://img.xkw.com/dksih/QBM/2024/2/1/3423804115755008/3440990016962560/STEM/2f9ecb4077b940dd9350bbca8399285c.png?resizew=260)
A.![]() | B.![]() | C.![]() | D.![]() |
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