Find the Measure of the Dihedral Angle Indicated $90 ^ { \circ }$

question 108

Multiple Choice

Find the measure of the dihedral angle indicated.
-The figure shown is a right prism whose bases are regular triangles. Find the measure of the dihedral angle between each lateral face and a base.

• A) \(90 ^ { \circ }\)
• B) \(120 ^ { \circ }\)
• C) \(45 ^ { \circ }\)
• D) \(60 ^ { \circ }\)

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