what is the volume in cubic feet if you have a cylindrical object whic is 8' in diameter and is 16' feet long.? could you please show in detail how to figure this out? thank you

V = pi * r^2 * h

v = 3.14 * 4^2 * 16

V = 803.84 cu. ft.

http://www.mathopenref.com/cylindervolume.html