If there are two cylinders (A and B) both with the same volume. B's radius is half of A's, so the length of B must be 4 ($2^2$) times that of A.
The uncertainty for the radius of A is the same as the for the radius of B, and the uncertainty is the same for the lengths. But the uncertainty of the volume isn't necessarily the same as for the radius)
Which cylinder A or B would have the greatest uncertainty for volume? Or would they be the same because as the percentage uncertainty for radius for B is larger than A but the percentage uncertainty for length B is less that for A? Do the uncertainties need to be know?