Question

A cylinder has a height of 30 ft and a volume of 63,679 ft³.

What is the radius of the cylinder?

Round your answer to the nearest whole number.

Answer 1

V = pi * r^2 * h
63,679 = 3.14 * r^2 * 30
63,679 = 94.2 r^2
divide both sides by 94.2
676 = r^2
take the square root of each side
r = 26 ft

CHECK
V = 3.14 * 26^2 * 30
V = 3.14 * 676 * 30
V = 63,679