Make use of the formula for the volume of a sphere. Solve for the radius. (You can solve for the radius before or after you put the numbers in the formula.)
V = (4/3)πr³
36000π = 4/3πr³ . . . . put the numbers in the formula
27000 = r³ . . . . . . . . . multiply both sides by 3/(4π)
30 = r . . . . . . . . . . . . . .take the cube root
