SOLUTION: If EF is perpendicular to planes P and R, which statement must be true?
1) Plane P is perpendicular to plane Q.
2) Plane R is perpendicular to plane P.
3) Plane P is parallell
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-> SOLUTION: If EF is perpendicular to planes P and R, which statement must be true?
1) Plane P is perpendicular to plane Q.
2) Plane R is perpendicular to plane P.
3) Plane P is parallell
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Question 631961: If EF is perpendicular to planes P and R, which statement must be true?
1) Plane P is perpendicular to plane Q.
2) Plane R is perpendicular to plane P.
3) Plane P is parallell to plane Q.
4) Plane R is parallell to plane P. Answer by richwmiller(17219) (Show Source):
