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长方体中一条棱有几条平行棱
更新时间: 2020-10-31 00:00:00  

长方体中一条棱有3条平行棱。连接上下两个底面的对角线,然后这个棱就与对面的棱在同一个平面内了,且这个四边形也为矩形,因此也平行,就是3条平行棱。

由六个长方形(特殊情况有两个相对的面是正方形)围成的立体图形叫长方体。正方体也是特殊的长方体。

关键词: 长方体 平行

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