How many cubic feet in a cylinder 1 foot by 4 feet?

Answer 1

If it is 1 foot diameter by 4 feet long, then it's pi*(1/2 ft)2 * (4 ft) = (pi) ft3.

If it's 4 feet diameter by 1 foot tall, then it's pi*(2 ft)2 * (1 ft) = (4*pi) ft3.