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如何判断平面与平面垂直

更新时间: 2020-09-16 00:00:00     

由平面与平面垂直判定定理:一个面如果过另外一个面的垂线,那么这两个面相互垂直。即一个平面过另一平面的垂线,则这两个平面相互垂直。

判断方式:

1、证明二面角是90度;

2、证明平面中的一条直线垂直于另一平面,则两平面垂直。

关键词: 如何 判断 平面 垂直

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