1 . 如图,正方形纸片
的中心
刚好是
的外心,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cb3f9a5da641be35117fd35ba07a6aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/822b3850f7df506efc1a592d57ec3a5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/534ce6fd08550a4c11ae8db23b572d23.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2 . 如图, 在
的内接四边形
中, 点A是
的中点,连接
, 若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41db498f025052df2dbb1e50ab672675.png)
_______
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bd6ffb78dad3375efa3b08ab518553d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c62ed22beb5ddcbbaec2f13d43f7911c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41db498f025052df2dbb1e50ab672675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83873a9d782f2588c5eedbfe73f9bc2f.png)
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2024-04-25更新
|
534次组卷
|
3卷引用:2024年河北省沧州市中考一模数学试题(B卷)
3 . 如图,A,B,C是
上的点,且
,在这个图中,若画出下列度数的圆周角:
,
,
,
,仅用无刻度的直尺不能画出的角度有( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/15/165ce145-c232-45d0-84f2-a53facb444ae.png?resizew=125)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a1be17e0a3e51cde1f50f384198e71e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6b86c22b670a8e9f3896f9e8883fbbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02b54dc6b3e1bb6544f47d4c8743fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1cde7aace5b888a1a1c26fb911e2f49.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/15/165ce145-c232-45d0-84f2-a53facb444ae.png?resizew=125)
A.![]() | B.![]() | C.![]() | D.![]() |
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4 . 如图,四边形
内接于
,若
,则
的度数为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/26/e33e5f79-045c-486d-99e6-4de942d6c5a7.png?resizew=107)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b513e50ec44ae66db55c0b3947d28537.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3818a2c9919d358b4c3713396093822b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/26/e33e5f79-045c-486d-99e6-4de942d6c5a7.png?resizew=107)
A.![]() | B.![]() | C.![]() | D.![]() |
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名校
5 . 如图,
是四边形
的外接圆,若
,则
的度数为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/23/d02e4db6-853f-4f2d-9011-2add81839123.png?resizew=145)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9ccea461315a9d05aa0193b937d4bfe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cb3f9a5da641be35117fd35ba07a6aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae1bd447c67755d0a245cfe57772e814.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d38d86a4c0dcb4ec85db47c65b9e7a4d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/23/d02e4db6-853f-4f2d-9011-2add81839123.png?resizew=145)
A.![]() | B.![]() | C.![]() | D.![]() |
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2024-02-26更新
|
80次组卷
|
6卷引用:河北省 邢台市南宫市多校联考2023-2024学年九年级上学期期中数学试题
6 . 如图,四边形
内接于
是
上一点,且
,连接
并延长交
的延长线于点E,连接
,若
,
,则
的度数为( )
![](https://img.xkw.com/dksih/QBM/2024/1/27/3420442059907072/3422056459821056/STEM/a5800bf3bbb540bdbdfec667dd95932a.png?resizew=139)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdf8a549d6d9fecc38261017d988e66b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83bb3820bab977db734f4335e4fde720.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c800aa3d4c6b8ddeb271ec32d6b44fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f6f7304aba56f2f05942266833bef5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/394563bdc76232327ba5e9c709901f10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b871a762469393cdd22f15aa49ebb8f9.png)
![](https://img.xkw.com/dksih/QBM/2024/1/27/3420442059907072/3422056459821056/STEM/a5800bf3bbb540bdbdfec667dd95932a.png?resizew=139)
A.![]() | B.![]() | C.![]() | D.![]() |
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7 . 如图,
是半圆O的直径,D是
的中点,若
,则
的度数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/667349d99185bb045030b733352ff7fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13dd359121976a4f6dad70d4bfaad30f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febc9a89d0d1c97b88c0f4acd32b4e67.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2024-01-29更新
|
164次组卷
|
4卷引用:河北省沧州市盐山县2023-2024学年九年级上学期期末数学试题
8 . 如图,
分别与
相切于
两点,且
,若点
是
上异于点
的一点,则
的大小为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/2/682a55a7-3e23-47f6-b3a0-fa1d4c8931f4.png?resizew=154)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60d4a832771ba45d407f31000c8fcf37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e52586ca2a3b783bc8092415e2d4bf6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce5a8bd93a2fd8a895802e2984ca576.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fabb884dc5f9609de491245463bbe9a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/2/682a55a7-3e23-47f6-b3a0-fa1d4c8931f4.png?resizew=154)
A.![]() | B.![]() | C.![]() ![]() | D.![]() ![]() |
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名校
9 . 下列命题在,正确的是由( )
①平分弦的直径垂直于弦;②经过三角形的三个顶点确定一个圆;③圆内接四边形对角相等;④相等的圆心角所对的弧相等,所对的弦也相等.
①平分弦的直径垂直于弦;②经过三角形的三个顶点确定一个圆;③圆内接四边形对角相等;④相等的圆心角所对的弧相等,所对的弦也相等.
A.①② | B.②③ | C.② | D.①④ |
您最近一年使用:0次
2023-12-28更新
|
153次组卷
|
2卷引用:河北省石家庄市第八十一中学2023-2024学年九年级上学期12月月考数学试题
10 . 如图,
是半圆O的直径,四边形
内接于半圆O.若
,则
( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/20/672008c2-2e19-48d6-982c-4316b3d3d3d0.png?resizew=123)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b513e50ec44ae66db55c0b3947d28537.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acb663fe83b1f7e93e13d91cc6460f9c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/20/672008c2-2e19-48d6-982c-4316b3d3d3d0.png?resizew=123)
A.![]() | B.![]() | C.![]() | D.![]() |
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