The area of one lateral face of a right pyramid with an equilateral triangular base is 75 square meters. If the slant height is 25 meters, what is the length of the side of its base, in meters?
The area of one lateral face of a right pyramid with an equilateral triangular base is 75 square meters. If the slant height is 25 meters, what is the length of the side of its base, in meters?
The slanted face is a triangle. Atriangle = (1/2)(base)(height)
75 = (1/2)(base)(25)
75 / 25 = (1/2)base
3 = (1/2)base
base = 6
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