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已知正五边形ABCDE与正五边形A′B′C′D′E′的面积比为1:2,则它们的相...
已知正五边形ABCDE与正五边形A′B′C′D′E′的面积比为1:2,则它们的相似比为( )
A.1:2
B.2:1
C.1:
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103001028411048775/SYS201311030010284110487010_ST/0.png)
D.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103001028411048775/SYS201311030010284110487010_ST/1.png)
:1
考点分析:
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