12 1 2 x 8 3 8 July 8, 2019 16 32 64 128 10 7 8 x 1 1 2 x 12 3 8 10 7 8 x 1 1 2 x 12 3 8 to cm X 2 1 2 12 x 7x 3 8 x 8 12 × 8 = 12 x 8 / 2 12 x 8 x 2 1/2
