Hey there Hailey!
So, to start this all of, what formula are we even going to use.
The formula that we will be using in this question would be . . .
[tex] \left[\begin{array}{ccc}\boxed{V= \pi r^2 \frac{h}{2}} \end{array}\right] [/tex]
So, now that we know what formula that we will use, we will now plug in those number's [tex]into[/tex] the formula.
Justification:
We do, [tex]9 = (height)*3=(radius) \ but \ using \ the \ formula \ also.[/tex]
[tex] \left[\begin{array}{ccc}27*3.14= \boxed{84.78} \\ Your \ correct \ answer \ would \ be \ \boxed{\boxed{27}}\end{array}\right] [/tex]
Hope this helps you!
~Jurgen