Answer:
Between 8 and 9
Explanation:
We know that the equation for the volume of a cone is V = 1/3(pi)r^2h
So,
V = 1/3(pi)r^2h
150pi = 1/3(pi) r^2 h --> the pi's cancel out and then we are left with...
3(150) / h = r^2
Plug in values and simplify --> r = sqrt.(450/6) and you end up getting 8.66025403784.
Hope that helps!