如图,3个正方形在⊙O直径的同侧,顶点B、C、G、H都在⊙O的直径上,正方形ABCD的顶点A在⊙O上,顶点D在PC上,正方形EFGH的顶点E在⊙O上、顶点F在QG上,正方形PCGQ的顶点P也在⊙O上.若BC=1,GH=2,则CG的长为( )
![](https://img.xkw.com/dksih/QBM/2018/4/11/1921979598888960/1922405976989696/STEM/cbe2f167330442d397fed30b675b6ba0.png?resizew=136)
![](https://img.xkw.com/dksih/QBM/2018/4/11/1921979598888960/1922405976989696/STEM/cbe2f167330442d397fed30b675b6ba0.png?resizew=136)
A.![]() | B.![]() | C.![]() | D.![]() |
17-18九年级下·江苏无锡·阶段练习 查看更多[3]
更新时间:2018-04-12 03:27:53
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【推荐1】如图,在正五边形
中,连接
,以点
为圆心,
为半径画弧交
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【推荐2】以下四个命题:其中真命题的个数有( )
①若
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①若
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④若函数
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