1 . 如图,
垂直平分
于
,
垂直平分
于
,若
,
,
,则
的周长为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a7e4a6765ce78b05ee97764771e01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e4280be91682e5d8a0d0704190319bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b4f1e7f062b8cb005e8dbaf8462db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50398f83e870dbbdcb4af18acae12a18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/8/ecaba7f5-6a59-4bd7-ab37-2705d43b5725.png?resizew=201)
您最近一年使用:0次
2024-03-12更新
|
57次组卷
|
5卷引用:广西壮族自治区南宁市2023-2024学年八年级上学期12月月考数学试题
广西壮族自治区南宁市2023-2024学年八年级上学期12月月考数学试题广西壮族自治区南宁市青秀区青秀区凤岭北路中学2023-2024学年八年级上学期12月月考数学试题浙江省宁波市海曙区海曙区储能学校2023-2024学年八年级上学期开学考试数学试题浙江省杭州市临平区2023-2024学年七年级上学期10月月考数学试题(已下线)13.1 轴对称(题型精讲精练)-【题型分类精粹】2023-2024学年八年级数学上学期期中期末复习讲练系列【考点闯关】(人教版)
名校
2 . 如图,在
中,
的垂直平分线
交
于点
,边
的垂直平分线
交
于点
.已知
的周长为
,则
的长为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15a424b50eaeafa6f302ffd95476cb86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.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/6c4c865445dda4a59b6d5cb18fd74404.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/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80b1fe1b971b780e443a9b13621611c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-03-08更新
|
216次组卷
|
11卷引用:广西壮族自治区玉林市玉州区2023-2024学年八年级上学期期中数学试题
广西壮族自治区玉林市玉州区2023-2024学年八年级上学期期中数学试题(已下线)专题03 轴对称与等腰三角形(12大考点+过关检测)-【寒假自学课】2024年八年级数学寒假提升学与练(人教版)山东省滨州市滨城区2023-2024学年八年级上学期期末数学试题甘肃省定西市安定区2023-2024学年八年级上学期期末数学试题(已下线)猜题02 轴对称图形(易错 拔尖必刷64题17种题型专项训练)-2023-2024学年八年级数学上学期期末考点大串讲(苏科版)甘肃省武威市凉州区2023-2024学年八年级上学期期末考试数学试题(已下线)专题04 垂直平分线和角平分线(八大题型)(题型专练)-2023-2024学年八年级数学下册《知识解读·题型专练》(北师大版)山东省济南市济南外国语学校2022-2023学年八年级上学期期末数学试题(已下线)专题02 线段的垂直平分线与角平分线(五种考法)-【好题汇编】备战2023-2024学年八年级数学下学期期中真题分类汇编(北师大版)(已下线)专题01 三角形的证明(考点清单,知识导图+7个考点清单、题型解读)-2023-2024学年八年级数学下学期期中考点大串讲(北师大版)(已下线)猜想01 三角形(考题猜想,常考易错7个考点42题专练)-2023-2024学年八年级数学下学期期中考点大串讲(北师大版)
名校
3 . 如图,在等边三角形
的外侧作直线
,点
关于直线
的对称点为点
,连接
,
,其中
交直线
于点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/6/15bd5c09-5dab-4d09-bc18-c6cde35f3271.png?resizew=100)
(1)依题意补全图形(要求:尺规作图并保留作图痕迹,不写作法,标明字母);
(2)若
,
,求
的长度.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/6/15bd5c09-5dab-4d09-bc18-c6cde35f3271.png?resizew=100)
(1)依题意补全图形(要求:尺规作图并保留作图痕迹,不写作法,标明字母);
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32ed11c47dae25f6e7176016ce78b44a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9009379527d405909c494f7df7877bfe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
您最近一年使用:0次
4 . 如图,
的平分线与
的垂直平分线
交于点
,
于点
,若
,
,则
的长为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/4/50b23800-d48d-4bfb-b7b8-33639abbde2a.png?resizew=220)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d7b2fe01a33c4825f9974ed9663a99c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/786080c82db1e1d3ec6367397aa63220.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9419302c045670b2f7384d6b0e7b7738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/714cc3707bba3bfdb56e251999be8592.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/4/50b23800-d48d-4bfb-b7b8-33639abbde2a.png?resizew=220)
A.1 | B.3 | C.![]() | D.9 |
您最近一年使用:0次
5 . 如图,以等边
的边
为腰作等腰
,连接
,过点
作
交
于点
,交
的延长线于点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/3/811717d6-fad3-41a9-9315-8c1d530a5b5e.png?resizew=192)
(1)求证:
平分
;
(2)若
,
,
,求
的长.
下面是小颖同学求
长的过程,请将解题过程补充完整;
解:如图所示,在
上截取
,连接
,
∵
,
,
∴
是等边三角形,
∴______
∵
是等边三角形,
∴
,
,
∴______,在
和
中![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfd509f67082a12f9e8266076625f5d9.png)
∴
∴______
由(1)知
为
的垂直平分线,
∴
∴______
∴
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1a9c6a736e6eac98a676fa3232db5a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac451db3443cabb204f96c31fd4a02e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3182db896bc2462331796e2a6108363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53c51c25b65a37b676ae3c3b71c29f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764509115979e9958101808383672ec0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cdd9f345915ae742ed3dcd3f9678264.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/3/811717d6-fad3-41a9-9315-8c1d530a5b5e.png?resizew=192)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9f79d7939c88e9702962e5917cad290.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2947ca8e0cdbeb4aab80ce9e7b63ba98.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5492f368b9a4f566c136bc5bdb8b5efb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93bc4c9dd737193f7acce692b23500d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97bb57534d77c2355aef18c9105c189d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79ff575e55857af133edb24c8e61504f.png)
下面是小颖同学求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79ff575e55857af133edb24c8e61504f.png)
解:如图所示,在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93dd4d854fbc236bccbd97a5d715fe97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/515d145b2605006214af641b81f3546f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/732ffbc726b274b78cad39926005c03c.png)
∵
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ebeaead7d72092a49923c1ef2116679.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/515d145b2605006214af641b81f3546f.png)
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f8305e23d5378f1cbf5518256a37c9e.png)
∴______
∵
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3ca0f2b2b40440365fcce22ac32c0ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/286a16420cca6b7fb972b0f59997f140.png)
∴______,在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1a33d27a9c655d01f606e9bce02b0a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6830ebecddbd9759be626289c408e4f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfd509f67082a12f9e8266076625f5d9.png)
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d689dd326e6ab94d8de0fdd5ea3d7340.png)
∴______
由(1)知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79ff575e55857af133edb24c8e61504f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3182db896bc2462331796e2a6108363.png)
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8807e146ccdd396089d2b210031566f.png)
∴______
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eea37a496f687eb10853758a6778c841.png)
您最近一年使用:0次
6 . 如图,在
中,
,
,线段
的垂直平分线
交
于点F,交
于点E,交
的延长线于点D,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1ec5d678ec42846e1d28301e3bfd4be.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/0fffa3d9c32da53b0ea0c338012ea20c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9abaeba15f3abdd877bc701af52c5cd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/070bc896d35495237fd65576e9b6f88e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1ec5d678ec42846e1d28301e3bfd4be.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/3/4740ccdd-82fb-4363-b843-add6edc664ee.png?resizew=195)
您最近一年使用:0次
7 . 如图,在
中,小明按以下步骤进行尺规作图:①分别以点A和点B为圆心,大于
的长为半径作弧,两弧分别相交于点M,N;②作直线
交
于点D,交
于点E,连接
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/27/b027a56a-e16e-4923-b77e-ca7139f8cbcd.png?resizew=196)
(1)按上述步骤完成小明的作图;
(2)若
,求
的度数;
(3)在(2)的条件下,若
,
,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d49404351575703cfe8325d1352ec9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/27/b027a56a-e16e-4923-b77e-ca7139f8cbcd.png?resizew=196)
(1)按上述步骤完成小明的作图;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7327142f768789232fb155c2e4a651b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4598486f8c5ac28b1165b76e78105979.png)
(3)在(2)的条件下,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29e240a6378adf6d23ebf9cc710c9bd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30b0393ce62b24aa5f9b740d4cc6743b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e742966e3711cfa53dce04022acf4bcc.png)
您最近一年使用:0次
8 . 如图,在
中,
,
,
的垂直平分线
交
于点D,交
于点E,若
,求
的值是多少?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e3262fc038bbec5e7c8cc47df08bef7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54486ba185c2598d90d996821c7e8159.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ece63571c71b079e463003f4f7cbf1ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/1/472a8b6d-2bf9-4f37-998a-d63b8984e05a.png?resizew=85)
您最近一年使用:0次
9 . 如图,在锐角三角形
中,
的平分线交
于点D,M、N分别是
和
上的动点,当
取最小值时,
的长为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/28/8662a51f-15cc-4ae2-8e03-ae09384c6c80.png?resizew=116)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0622dc1af2b998f6ec94b0016dcb7b22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e95e98288acdd662de9a3dae1fcf0368.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f50b3ae183997b707d16eb4e7f6712fa.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/28/8662a51f-15cc-4ae2-8e03-ae09384c6c80.png?resizew=116)
A.2 | B.3 | C.4 | D.5 |
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名校
10 . 如图,点E、F是
的边
上的两点,线段
的垂直平分线交
于D,
的垂直平分线恰好经过E点,连接
、
,若
,则
的度数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6200af9b268f7abed01a2deaaa9c03f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c962fe4f47732b8e6e83d17ff2b9af13.png)
A.α | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-02-27更新
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