A pyramid has a base in the shape of a rhombus and a peak directly above the base's center. The pyramid's height is #7 #, its base has sides of length #9 #, and its base has a corner with an angle of #(2 pi)/3 #. What is the pyramid's surface area?
1 Answer
Dec 12, 2017
T S A = 219.9389
Explanation:
AB = BC = CD = DA = a = 9
Height OE = h = 7
OF = a/2 = 9/2 = 4.5
Area of
Lateral surface area
Area of base ABCD
T S A
T S A
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