Find the volume of the cylinder in terms of pi.

Answer:
[tex]\large\boxed{V=81\pi\ in^3}[/tex]
Step-by-step explanation:
The formula of a volume of a cylinder:
[tex]V=\pi r^2H[/tex]
r - radius
H - height
We have r = 3in and H = 9in. Substitue:
[tex]V=\pi(3^2)(9)=\pi(9)(9)=81\pi\ in^3[/tex]