Question

find the volume between the cylinders.
R=12in.
r=9in.
H=20in.

Answer 1

volume = volume of outer cylinder - volume of inner cylinder
= πR^2H - πr^2H
= πH (R^2 - r^2)
= 3.14 x 20 in (12^2 - 9^2) in^2
= 62.8 (144 - 81) in^3
= 3956.4 inch^3

Answer 2

where is my medal pls ::))