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

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