看到这个上海6年级竞赛题，看你们谁能做出来！！？？

来源: lilipp 于 2012-03-23 14:30:02 [] [博客] [旧帖] [给我悄悄话] 阅读数 : (592 bytes)

i cannot draw, but imagine a perfect square with a corner cut off (about 1/4 of the length on each of the two adjacent sides), the question is: 

add one(1) straight line to the pattern, and devide it into (2) triagles.

hint/ think out of box

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