如图,过
外一点
作
的切线
,点
是切点,连接
交
于点
,点
是
上不与点
,
重合的点.若
,则
的度数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.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/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52fff6f35c2a7a57dd3b2e0683498a21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/194741f4d2ae7ee44cafca780361446a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/29/7be4e7b5-9d59-49fe-9a79-acb99cff958a.png?resizew=176)
A.![]() | B.![]() | C.![]() | D.![]() |
2023·浙江杭州·一模 查看更多[3]
更新时间:2023-05-16 09:30:57
|
相似题推荐
单选题
|
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(0.85)
【推荐1】如果圆中一条弦长与半径相等,那么此弦所对的圆周角的度数为( )
A.30° | B.60° | C.150° | D.30°或 150° |
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名校
【推荐2】如图,
与
相切于点A,
与
相交于点C,点D是优弧
上一点,
,则
的大小是( )
![](https://img.xkw.com/dksih/QBM/2022/2/15/2923235729301504/2933088466075648/STEM/83f3ac2a-e694-482b-85df-cb3233707cbf.png?resizew=162)
![](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/aaf1438142deeac876fc7dc50552e552.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fcef842fdb0ef25a9f268966baf1f6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febc9a89d0d1c97b88c0f4acd32b4e67.png)
![](https://img.xkw.com/dksih/QBM/2022/2/15/2923235729301504/2933088466075648/STEM/83f3ac2a-e694-482b-85df-cb3233707cbf.png?resizew=162)
A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐1】如图,AB与⊙O相切于点B,∠AOB=60°,则∠A的度数为( )
![](https://img.xkw.com/dksih/QBM/2018/6/10/1963872322551808/1968072029921280/STEM/57a13112ab0545d386d50d0e9ef0cea0.png?resizew=111)
![](https://img.xkw.com/dksih/QBM/2018/6/10/1963872322551808/1968072029921280/STEM/57a13112ab0545d386d50d0e9ef0cea0.png?resizew=111)
A.15° | B.30° | C.45° | D.60° |
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【推荐2】如图,
是⊙O的直径,
,
分别切⊙O于点
,
,若∠BCD=α,则
的度数是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/27/5a5cef4d-62fb-4fae-b580-08512fc714e2.png?resizew=157)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19768d8c55deb4973820aeab7a224e6a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/27/5a5cef4d-62fb-4fae-b580-08512fc714e2.png?resizew=157)
A.90°-2α | B.90°-α | C.45° | D.2α |
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