如图,四边形ABCD是⊙O的内接四边形,直径AB=10,点D平分
,DE⊥AB交⊙O于点E,∠EDC=99°,则
的长是( )
![](https://img.xkw.com/dksih/QBM/2020/6/25/2492423825645568/2493917299269632/STEM/b05e5ca60934469abd1077497a613db7.png?resizew=160)
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![](https://img.xkw.com/dksih/QBM/2020/6/25/2492423825645568/2493917299269632/STEM/b05e5ca60934469abd1077497a613db7.png?resizew=160)
A.![]() | B.![]() | C.3π | D.![]() |
2020·云南曲靖·一模 查看更多[2]
更新时间:2020-06-27 22:30:38
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