名校
1 . 如图,点
在同一直线上,
,
,
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68c6a5793ab84aadb1dc78b4a8d6892f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd81adb13f5a7550b0f94f770900a613.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5adaae99b4ac308549134169e69247a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c244edbf77fbb8e9c017515e370c5c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f805768a5ffaf8bdfa4bc3b680aafdc9.png)
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2024-01-28更新
|
93次组卷
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4卷引用:福建省福州市福州延安中学2021-2022学年九年级下学期4月月考数学试题
2 . 如图所示,在等边
中,点D是
的中点,
于点E,作
交
于点F,
.
是等边三角形;
(2)求
的周长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32c38dfd14dde969702dff97ef2270f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/476b0b8378f4b0f73f3dc5d84d89f616.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/811cde82a25e8959f849a811520032e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c105d6ba18fbb0581fb982175e2eac9.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c105d6ba18fbb0581fb982175e2eac9.png)
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2023-12-11更新
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54次组卷
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3卷引用:江西省新余市十校联考2022-2023学年九年级上学期期中数学试题
3 . 如图,
,
是
的直径,
交
于D,
于M点.
求证:
与
相切.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba870ac7e456d8daa098c9d52aeccc2c.png)
求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15a424b50eaeafa6f302ffd95476cb86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/9/03044a0f-dc51-4aae-9138-875c1833990a.png?resizew=150)
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2023-10-30更新
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5卷引用:云南省红河哈尼族彝族自治州石屏县2021-2022学年九年级上学期期末数学试题
云南省红河哈尼族彝族自治州石屏县2021-2022学年九年级上学期期末数学试题湖北省襄阳市樊城区太平店镇青泥湾中学2019-2020学年九年级上学期期中数学试题福建省福州市闽清县2019-2020学年九年级上学期期中数学试题(已下线)专题03 圆(十四大题型)-【好题汇编】备战2023-2024学年九年级数学上学期期末真题分类汇编(山东专用)(已下线)专题04 圆的辅助线和辅助圆(九大题型)-【好题汇编】备战2023-2024学年九年级数学上学期期末真题分类汇编(山东专用)
名校
4 . 如图,小明将刻度尺的一边经过直角三角尺
的直角顶点
,交
于点
,另一边分别交
、
于点
、
,量得
,请你帮助小明计算出
的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/999d8f35235fe017217d207bea987d9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23dc2d2dd56fcc67698c45a6e0e48f80.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/31/865b5074-561a-4d5d-820e-61e3bd77e98b.png?resizew=108)
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5 . 如图,直线
,含
角的三角板
的直角顶点F在直线
上,顶点E在直线
上,若
,则
的度数是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0fff774b4b0087a6f304ce930d359be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79a97bb4dcfab4ec7539bc783d563c49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffe8a84ca3a13f82aff1a022edc66065.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffa2dd13f19c4a8cccc63ac85ef8003a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/751ce5948476aaa823ff0fa58c505519.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/20/2c21bbe8-f636-4f04-a790-cf93e4f4bdf6.jpg?resizew=112)
A.![]() | B.![]() | C.![]() | D.![]() |
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名校
6 . 如图,直线
,点
在直线
上,
,若
,则
的度数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8a4352562ae8aa968014fd0d931b677.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/080db3af81b29ed10144a1c2e2a4fb8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21c0726579eadb28c3c7eb9576dcd6af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d57899ad4774aed9ccc7bd23db72153.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2023-10-13更新
|
298次组卷
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4卷引用:2022年北京市海淀区中国人民大学附属中学本部中考模拟数学试题
2022年北京市海淀区中国人民大学附属中学本部中考模拟数学试题江苏省盐城市盐都区第一共同体2023-2024学年九年级下学期3月月考数学试题(已下线)第03讲 平行线的性质-【寒假自学课】2024年七年级数学寒假提升学与练(人教版)(已下线)5.3.1平行线的性质 课后作业B层
名校
7 . 如图,直线
,直角
的直角顶点C在直线n上,若
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0205571fa39f343ee5749b78d466bf0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3018c687427b6257767eda4a8c6612.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53d64dff8d18b416a8a7c300833615d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cc310194575262fb45352c2fbc19868.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/18/c96d8db1-71de-44d0-b720-941e6657f860.jpg?resizew=148)
A.![]() | B.![]() | C.![]() | D.![]() |
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2卷引用:2022年湖南省株洲市第二中学中考二模数学试题
8 . 如图,在
中,
,
于点
,过点
作
的平行线交
的外角
的平分线于点
.求证:四边形
是矩形.
![](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/8b5f215a42c4b7078d8d65923eb9980e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac37366d2b54dc7d9a95ac6ddda5f3a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/945e93c9f3515ded840de09a9ba81ce8.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/6/47fc9960-8aa4-404b-a968-b48ca00e2f0d.jpg?resizew=159)
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2021九年级·全国·专题练习
9 . 小明观察“抖空竹”时发现,可以将某一时刻的情形抽象成数学问题:如图,已知
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21758df8dd58dbd52e9eedc022fd51be.png)
,则
的度数是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0fff774b4b0087a6f304ce930d359be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21758df8dd58dbd52e9eedc022fd51be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17ec5a9ba76307f5db4c97de1e8966fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fea9059363a3aa0fb088af1fae1d8ee0.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2023-09-21更新
|
77次组卷
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13卷引用:江苏省无锡市江阴市华士实验中学2021-2022学年九年级下学期3月月考数学试题(一模)
江苏省无锡市江阴市华士实验中学2021-2022学年九年级下学期3月月考数学试题(一模)(已下线)考点13 相交线与平行线(考点专练)-备战2021年中考数学考点微专题江苏省无锡市锡山区2020-2021学年九年级下学期期中考试数学试题2024年广东省深圳市罗湖外语实验学校中考模拟数学试题甘肃省白银市2020-2021学年八年级上学期期末数学试题浙江省暨阳初中教育共同体2022-2023学年七年级下学期3月月考数学试题辽宁省大连市西岗区2022-2023学年七年级下学期第二次质检数学试题广东省汕尾市陆丰市上英中学2022-2023学年七年级下学期期中数学试题辽宁省葫芦岛市绥中县2022-2023学年七年级下学期期末数学试题湖北省宜昌市夷陵区樟村坪镇中小学2023-2024学年七年级下学期月考数学考试试题河北省石家庄市平山县2023-2024学年七年级下学期期中数学试题四川省德阳市广汉市2023-2024学年七年级下学期5月期中数学试题广东省江门市江门市新会尚雅学校2023-2024学年七年级下学期期中数学试题
10 . 下列命题正确的是( )
A.有公共顶点且相等的两个角是对顶角 | B.两条平行线间的距离处处相等 |
C.同位角相等 | D.有且只有一条直线与已知直线垂直 |
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2023-09-18更新
|
133次组卷
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2卷引用:2022年河北省石家庄市第二十八中学中考四模数学试题