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공간도형(Three-dimensional space)
- 평면 위의 평행하지 않은 두 직선에 수직인 직선은 평면과 수직이다.
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공간도형(Three-dimensional space)
민은기 (Min Eun Gi), Oct 10, 2015
공간도형(Space Shapes)
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1. 평면 위의 평행하지 않은 두 직선에 수직인 직선은 평면과 수직이다.
평면 위의 평행하지 않은 두 직선에 수직인 직선은 평면과 수직이다.
평면 위의 평행하지 않은 두 직선에 수직인 직선은 평면과 수직이다.(When a line is perpendicular to two non-parallel lines on a plane, it is perpendicular to the plane.)http://me2.do/GNA5FdVH


평면 위의 평행하지 않은 두 직선에 수직인 직선은 평면과 수직이다.(When a line is perpendicular to two non-parallel lines on a plane, it is perpendicular to the plane.)http://me2.do/GNA5FdVH
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