Answer:
6 inches
Explanation:
You want to know the radius of a cylinder with volume 72π in³ and height 2 in.
Volume
The given numbers can be put in the given formula, and the equation solved for r.
V = πr²h
72π in³ = πr²(2 in)
36 in² = r²
r = √(36 in²) = 6 in
The radius of the cylinder is 6 inches.