Answer to Question #9 in Geometry for Ben

Question #9

How do I determine that the line is perpendicular to the plane?

Expert's answer

If the line is perpendicular to two intersecting straight lines of the plane, then it is perpendicular to this plane.

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01.08.13, 16:48

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01.08.13, 16:42

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01.08.13, 15:52

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