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如图,已知正方形ABCD的对角线长为2,将正方形ABCD沿直线EF折叠,则图中阴...
如图,已知正方形ABCD的对角线长为2
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101193851288812631/SYS201311011938512888126009_ST/0.png)
,将正方形ABCD沿直线EF折叠,则图中阴影部分的周长为( )
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101193851288812631/SYS201311011938512888126009_ST/images1.png)
A.8
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101193851288812631/SYS201311011938512888126009_ST/1.png)
B.4
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101193851288812631/SYS201311011938512888126009_ST/2.png)
C.8
D.6
考点分析:
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![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101193851288812631/SYS201311011938512888126006_ST/0.png)
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![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101193851288812631/SYS201311011938512888126004_ST/images0.png)
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