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The figure above consists of 25 squares,if the figure were foled along the dotted
diagonal to form a flat triangle,后面省略
我的问题是什么是“ dotted” diagonal
什么事“flat” triangle
人气:339 ℃ 时间:2020-05-28 01:50:06
解答
dotted diagonal:虚线画出的对角线
flat” triangle:平面三角形
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