Algebra help

Question

the formula for the volume of a cone is V=1/3 π^2h. Find the radius, to the nearest hundredth, of a cone with a height of 5 in. and volume of 15 in^3.

Answer 1

You have the formula in the question, as well as all the information you need to use the formula.  What more help do you need?

Answer 2

Using the formula

15 = (1/3)πr²(5)

3 = (1/3)πr²        divide both sides by 5

9 = πr²               multiply both sides by 3

2.8647 = r²         divide both sides by π