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如何求直线与平面所成的角
更新时间: 2020-09-16 00:00:00  

1、若直线在平面内或者直线与平面平行,此时直线与这个平面所成角是0°;

2、若直线与平面斜交,则找出这条直线在平面上的射影,则这条直线与这个平面所成角就是这条直线与它在这个平面内的射影所成的角。

关键词: 如何 直线 平面

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