1 3 x 3.14 x 9 x 4 July 8, 2019 16 32 64 128 1 3 x 3.14 x 49 x 9 1 3 x 3.14 x 4 2 x 9 1 3 x 3.14 x 4 squared x 9 3 x 3 = 9
