One cubic foot of sand weighs about 100 pounds. Approximate the weight of the cone-shaped pile of sand. Round your answer to the nearest hundred pounds.
To find the weight of this sand you will use the formula for finding the volume of a cone and then multiply this by 100. The volume will give us the number of cubic feet.
V = 1/3 x B x h (B is the area of the circle) V = 1/3 x (pi x r^2) x h 1/3 x 3.14 x 3.75^2 x 4.5 V = 66.23 cubic feet
