Line AK passes through vertex A of triangle ABC. AK⊥AB and AK⊥AC. How is line AK placed in relation to plane ABC?
July 27, 2021 | education|
The straight line AK is perpendicular to the plane ABC according to the sign of the perpendicularity of the straight line and the plane. On the basis of the perpendicularity of a straight line and a plane: if a straight line is perpendicular to two intersecting straight lines lying in a plane, then it is perpendicular to this plane.
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