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(2002•常州)半径相等的圆的内接正三角形、正方形、正六边形的边长之比为( )...
(2002•常州)半径相等的圆的内接正三角形、正方形、正六边形的边长之比为( )
A.1:
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131021232550768876078/SYS201310212325507688760000_ST/0.png)
:
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131021232550768876078/SYS201310212325507688760000_ST/1.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131021232550768876078/SYS201310212325507688760000_ST/2.png)
:
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131021232550768876078/SYS201310212325507688760000_ST/3.png)
:1
C.3:2:1
D.1:2:3
考点分析:
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