The formula for the volume of a cylinder is v = π r² h
Let's use 3.14 for π.
Square 3.7 to get 13.69.
Multiply that by 3.14.
v = 42.9866 x 12
Finally, multiply it by 12.
v = 515.8392
You could also express your answer in terms of pi.
Square 3.7 to get 13.69.
Multiply it by 12. 164.28 is what you get.
v = 164.28π
Hope this helps!