Having problems figuring out the height of a problem.?

Question

if a cone has a volume of 121cm cubed and a radius of 5 cm how tall is it?

Answer 1

V = (pi/3)r²h = 121 & r = 5  so (pi/3)(25)h = 121

 

h = 121(3/pi)(1/25) = (363/pi)(/25) = 363 / (25pi) = 4.622 cm