A cylinder has volume of 339.3cm^3 and height of 3cm. What is the radius?

Please help! Can you show me the formula to use and the steps involved in getting the answer? Thank you for your time.

V= π * r^2 * h

339.3 = 3.14 * r^2 * 3

3.14 * 3 = 9.42

Divide both sides by 9.42, then find square root.