Please help me asap! and thanks!

Cylinder A has a radius of 1 m and a height of 3 m. Cylinder B has a radius of 3 m and a height of 3 m. What is the ratio of the volume of cylinder A to the volume of cylinder B. I think it's 1:3 am I right?

NotSoSmart
May 26, 2017

#1**+1 **

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

Guest May 26, 2017

#3**+2 **

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

Melody
May 26, 2017