如图,AB为⊙O的直径,点C,D在⊙O上.若∠AOD=30°,则∠BCD等于( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/30/ca43da52-fc4a-4c85-926b-dfaca825aa6c.png?resizew=119)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/30/ca43da52-fc4a-4c85-926b-dfaca825aa6c.png?resizew=119)
A.75° | B.95° | C.100° | D.105° |
更新时间:2018-02-12 20:21:46
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【推荐1】如图,将⊙O沿弦AB折叠,圆弧恰好经过圆心O,点P是优弧AMB上一点,则sin∠APB的值为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/20/7f3b5403-3a1d-4384-93d9-4f4669289c97.png?resizew=149)
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A.![]() | B.![]() | C.![]() | D.1 |
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单选题
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适中
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【推荐2】如图,
为
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A.3 | B.4 | C.5 | D.6 |
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