A pyramid is built with a square bottom. The sides are made of triangles that are 5.86 ft. in width at the base and 10.18 ft. in height. How big is the square base and how many triangles does it take to make the pyramid?

Area of the base = 5.86^2 = 34.3396

4 triangles make the lateral faces of the pyramid.

LSA = 2*5.86* sqrt (10.18^2+ 1.465^2)

= 120.539 square inches

Please let me know if you have any questions and best me if you are satisfactory.

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