what is the volume of a 11 cm x 1cm cylinder?
If you have a cylinder and know its radius and its length, then you can work out its volume.
Volume is given by, V = πR^2.L,
where R is the radius and L is the length.
We have R = 1 cm, and L = 11 cm. Then
V = πR^2.L = π(1)^2(11) = 22π
Volume is: V = 22π cm^3