Chapter 63, Problem 16A

A piece in the shape of a pyramid with a regular octagon (eight sided) base is machined from a solid block of bronze. Each side of the octagon base is 9.36 inches long. The height of the piece is 7.08 inches. The octagon base area 4.829, where s is the length of a side of the octagon.
a. Determine the volume of the piece. Round the answer to the nearest cubic inch.
b. Determine the weight of the piece. Round the answer to the nearest pound.

Note: One cubic foot of the bronze used weighs 547.9 pounds per cubic foot.