A partial cylinder lies on its side. The bases are a 90 degree sector of a circle. What is the exact volume of the partial cylinder. r=8,length 10

Question

160 pi inch cubed
20 pi inch cubed
80 pi inch cubed
40 pi inch cubed

Answer 1

I will interpret this as having 1/4 of the cylinder

vol of whole cyl. = π(8^2)(10) = 640π
so 1/4 of that is 160π