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OpenStudy (anonymous):
The following figure is a box in which the top and bottom are rectangles and line segment BF perpendicular to plane FGH. Answer the following: (see picture) a.) Find the intersection of of line BH and plane DCG. b.) Name two pairs of perpendicular planes. c.) Name two lines that are perpendicular to plane EFH. d.) What is the measure of dihedral angle D-HG-F?
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