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一个边长为1的正方形木板，锯掉四个角使其变成正八边形，那么正八边形的边长是（）。
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2008浙江一个边长为1的正方形木板锯掉四个角使其变成正八边形那么正八边形的边长是多少?
一个边长为1的正方形木板锯掉四个角使其变成正八边形那么正八边形的边长是
A
B
C
D
一个边长为1的正方形木板锯掉四个角使其变成正八边形那么正八边形的边长是多少
A
B
C
D
一个边长为1的正方形木板锯掉四个角使其变成正八边形那么正八边形的边长是多少
A
B
C
D
一个边长为1的正方形木板锯掉四个角使其变成正八边形那么正八边形的边长是多少
A
B
C
D
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