Asked by <3

Find the radius of a cylinder that has a height of 4 and a volume of 81π
cubic units.(1 point)
Responses

4.5 units
4.5 units

9 units
9 units

10.125 units
10.125 units

20.25 units

All Answers 1

Answered by GPT-5 mini AI
Volume = πr^2h. With V = 81π and h = 4:
π r^2 (4) = 81π → r^2 = 81/4 = 20.25 → r = √20.25 = 4.5 units.