如图,
是⊙O的直径,
,
分别为⊙O上一点,
,
,则∠B等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d8605f1d01449594dac0a54ca71f569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52d66e2111f4ba89416cade42abb3ebe.png)
A.![]() | B.![]() | C.![]() | D.![]() |
更新时间:2021-05-17 19:56:14
|
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【推荐1】如图,点A,B,C在⊙O上,若∠ACB=114°,则
=( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/780d8fd6c6c1deeeb45e15f639719e02.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/20/fad69299-2e59-4e05-be17-339240fdfaf2.png?resizew=134)
A.66° | B.114° | C.132° | D.134° |
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单选题
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较易
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【推荐2】如图,在
中,点
在圆上,
,则
的半径
的长是( )
![](https://img.xkw.com/dksih/QBM/2021/1/27/2645164990013440/2647307328462848/STEM/7f839fbf98cd4fb7a250b4d7dd18b08b.png?resizew=123)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38335830b93ac4d99c28a8e209eecb3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76956481b11cb1351a1a39bae3012ece.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://img.xkw.com/dksih/QBM/2021/1/27/2645164990013440/2647307328462848/STEM/7f839fbf98cd4fb7a250b4d7dd18b08b.png?resizew=123)
A.![]() | B.![]() | C.![]() | D.![]() |
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