First, find the side of the square using the surface area. SA(square) = 6s^2 72 = 6s^2 12 = s^2 s = 2 square root of 3
The formula to get the scale factor is equal to big/small SF = big / small. 1.5 = 2 square root of 3 / small 4 square root of three = 3s s = 4 square root of three over 3
SA = 6s^2 SA = 6 (4 square root of three over 3)^3 SA = 288 / 9 SA = 32 in^2