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用正方形纸折三分之一怎样折
更新时间: 2020-09-22 00:00:00  

1、取一张正方形纸;

2、折出对角线;

3、上下边对折,折出折痕;

4、沿左侧边中点与右下角的连线(图中虚线)对折,在与对角线相交的地方压出折痕;

5、过刚才的交点,将下方纸向上折,两侧边要对齐;

6、再将上方纸对齐下边折下;

7、打开,三等分线就折好了。

关键词: 正方形 分之 怎样

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