need help with 15... thx
8 x 1.25 = 10 10 x 10 = 100
8 x 8 = 641.25 x 2 = 2.52.5 + 8 = 10.510.5 x 10.5 = 110.25 110.25 - 64 = 46.2546.25 inches^2