<u>Answer:</u>


<u>Step-by-step explanation:</u>

First set the equation to 0


Second, get the 12 on the right side of the equal sign by adding a -12 to each side



Square root both sides of the equal sign.


Take the square root on left sides of the equal sign.


Take the square root on the right side of the equal sign. Remember 



<u>AND</u>

Answer:
3183.96 cm³
Step-by-step explanation:
The formula for volume of a cylinder is: V = pi times r² times h.
Hope it helps!
Dividend
1233494902177284928172738392 (this is just bc my answer has to be long don't mind thiss)