如图,点A、B、C在⊙O上,∠B=52°,∠C=18°,则∠A的度数为( )
![](https://img.xkw.com/dksih/QBM/2015/3/5/1573807705292800/1573807711453184/STEM/46c1f7afe618489aa2fbec557d9f6845.png)
![](https://img.xkw.com/dksih/QBM/2015/3/5/1573807705292800/1573807711453184/STEM/46c1f7afe618489aa2fbec557d9f6845.png)
A.30° | B.20° | C.34° | D.28° |
更新时间:2015-03-05 15:23:45
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【知识点】 圆
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【推荐2】如图,点O是正六边形
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A.![]() | B.![]() | C.![]() | D.![]() |
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