ANSWER
The height is 30 feet
EXPLANATION
The volume of a cylinder is calculated using the formula;
[tex]V = \pi {r}^{2} h[/tex]
The diameter is 24 ft. This implies that the radius of the cylinder is 12ft.
We substitute known values to get:
[tex]4320\pi= \pi{(12)}^{2} h[/tex]
[tex]4320\pi=144 \pi h[/tex]
Divide both sides by 144π
[tex]h = 30ft[/tex]