Siobhan wants to have a beach party in January. Her parents said she can use the garage, which is 36 feet long and 20 feet wide. If she wants to cover the floor with 2 inches of sand, how much sand does she need?
Area of the garage: A = L x W = 36 x 20 = 720 ft². Siobhan wants to cover the floor with the 2 inches of sand. It means: h = 2 in 1 ft = 12 in 1 in = 1 : 12 = 0.0833 ft h = 2 · 0.0833 = 0.166 ft V = A · h = 720 · 0.166 ≈ 120 ft² Answer: A ) 120 cubic feet.
