Given:
V denotes the volume of the water tank.
r represents the radius of the tank.
h represents the length of the water tank.
The volume of cylindrical tank is expressed as,
[tex]V=\pi\times r^2\times h[/tex]
Given that the length of tank h = 20 feet.
The equation becomes,
[tex]\begin{gathered} V=\pi\times r^2\times20 \\ V=20\pi(r^2) \end{gathered}[/tex]
Answer:
[tex]V=20\pi(r^2)[/tex]
