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[几何] 切图形

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tommywong posted 2014-7-7 20:19 |Read mode
转自:sq.k12.com.cn/discuz/thread-707184-1-1.html

1、把它切成三块,然后拼成一个正方形。
无标题.png
2、把一个正方形切成5块,然后拼成两个正方形,要求一个正方形的面积是另一个的二倍。
3、把一个正方形切成7块,然后拼成三个相等的正方形。
现充已死,エロ当立。
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《方幂和及其推广和式》 数学学习与研究2016.

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乌贼 posted 2014-7-9 02:08
面积变不变

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original poster tommywong posted 2014-7-9 07:32
回复 2# 乌贼

那要看你是切图还是摺图......

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