Question

a cylinderical oil drum has a diameter of 2 feet and a height of 3 feet. what is the volume of the oil drum

Answer 1

Height=3ft
diameter=2ft
so radius= 1ft
volume= pie×r^2×h
=22/7×1×1×3
=66/7 ft^3
Or =9.428 ft^3

Answer 2

V = πr^2h

We are given the diameter of 2, which means the radius is 1.

V = π*1^2 * 3

V = π * 3

So the answer is V = 3π or V ≈ 9.42