如图,在⊙O中,点C在优弧AB上,将弧BC沿BC折叠后刚好经过AB的中点D. 若⊙O的半径为
,AB=8,则BC的长是( )
![](https://img.xkw.com/dksih/QBM/2019/11/25/2341488383098880/2342917012619264/STEM/18803c0bd9c24adda370e5e2da122107.png?resizew=124)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03e9d0e63d7ec8ddf95482bf0bc5b144.png)
![](https://img.xkw.com/dksih/QBM/2019/11/25/2341488383098880/2342917012619264/STEM/18803c0bd9c24adda370e5e2da122107.png?resizew=124)
A.![]() | B.![]() | C.![]() | D.![]() |
18-19九年级上·浙江·期中 查看更多[2]
更新时间:2019-11-27 14:19:46
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