Please help me asap! and thanks!

Volume of A =Pi x r^2 x h

                       =3.141592 x 1^2 x 3

                       =~9.42 m^2 Volume of cylinder A

Volume of B =3.141592 x 3^2 x 3

                       =~84.82 m^2 Volume of cylinder B

Ratio of A to B =9.42 / 84.82 =0.111. Or, a ratio of ~ 1:9

The volume of a cylinder is  pi*r^2*h

Both cyliders have the pi and they both have the height of 3 so...

Only the r is different in the 2 cylinders so the ratio of the volumes is just    \(1^2:3^2 \) 

whichi is just   1:9

YES !!!! Just divide B/A =84.82 /9.42 =~9. So the ratio of B to A is 9:1, Or the reverse 1:9 is the ratio of A to B.