Question

Could someone help me with all please

Answer 1

84 = 2 x 2 x 3 x 7

288 = 2 x 2 x 2 x 2 x 2 x 3 x 3 = (2 x 2 x 2 x 2) x (2 x 3 x 3) = 16 x 18
The dimensions are 16 feet and 18 feet.