如图,已知正方形ABCD的顶点A、B在⊙O上,顶点C、D在⊙O内,将正方形ABCD绕点A逆时针旋转,使点D落在⊙O上,若正方形ABCD的边长和⊙O的半径均为6cm,则点D运动的路径长为( )
![](https://img.xkw.com/dksih/QBM/2020/2/8/2394414038122496/2394746581434369/STEM/e7efd59f5d374685b3e381f4dfe2c3ec.png?resizew=134)
![](https://img.xkw.com/dksih/QBM/2020/2/8/2394414038122496/2394746581434369/STEM/e7efd59f5d374685b3e381f4dfe2c3ec.png?resizew=134)
A.2πcm | B.![]() | C.πcm | D.![]() |
更新时间:2020-02-13 03:21:57
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