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A square pyramid has a base area of 64 ft The pyramid's total surface area is 224 ft2 What is the area of each triangular face?

A. 32 ft
B. 53 1/3 ft
C. 40 ft
D. 160

Answer :

khalid222musap557gk
so you the area of the square pyramid is 224, and the area contains the base area+ 4*the area of triangle surface.
so we can say, 224=64+4*x where x equals the area of each side of the triangle
160=4*x divide by four 
so x=40 ft squared and the answer would be C

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