The surface area for a pyramid with a square base is the base + 4 triangles

in this case it is 5*5 = 25ft^2 for the base

and for the triangles it is (1/2)*7*5= 17.5ft^2/ triangle and multiply that by 4 which is 70ft^2 in total

add the base and we get that the total surface area is 95ft^2

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