半径等于
的圆中,垂直平分半径的弦长为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
A.![]() | B.![]() | C.![]() | D.![]() |
更新时间:2021-02-26 13:39:28
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单选题
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适中
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名校
【推荐1】如图,OA为
的半径,弦
于P点
若
,
,则弦BC的长为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
![](https://img.xkw.com/dksih/QBM/2018/12/13/2095742017085440/2099479086219264/STEM/a434746fca47444287992a8d69025e87.png?resizew=120)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9ccea461315a9d05aa0193b937d4bfe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7750560ed594cacae27e2f7626fc008.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c90282d4a37c9a20620d4bbb0c263cae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23b928d2658fa6681361e8f049dd370d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764d93f8f349fe088b3a96a70a08c337.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d71379442f28c038d367d49422cf90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
![](https://img.xkw.com/dksih/QBM/2018/12/13/2095742017085440/2099479086219264/STEM/a434746fca47444287992a8d69025e87.png?resizew=120)
A.10 |
B.8 |
C.6 |
D.4 |
您最近一年使用:0次
单选题
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适中
(0.65)
【推荐2】如图,在
中,半径
弦
,点
为垂足,若
,则
的大小为( )
![](https://img.xkw.com/dksih/QBM/2020/3/20/2423447803052032/2423770651222016/STEM/b033fb02c31147e485c8204560bd5aab.png?resizew=104)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4317430d5a2b61d9a2a88b73e7d7ad39.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3981e7286d41960daf4e110c1c84e03a.png)
![](https://img.xkw.com/dksih/QBM/2020/3/20/2423447803052032/2423770651222016/STEM/b033fb02c31147e485c8204560bd5aab.png?resizew=104)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次