Question

Two cylinders $A$ and $B$ are formed by folding a rectangular sheet of dimensions $20cm\times 10cm$ along its length and also along its breadth respectively. Then volume of $A$ is ________ of the volume of $B.$

Answer 1

Rectangular sheet dimension is $20cm\times 10cm$

• When a cylinder is folded along its length, which is$20cm$, then the resultant cylinder is with a height of $10cm.$
• Again, if a cylinder is folded along its breadth, which is $10cm$, then the resultant cylinder is with height of $20cm$

When the above conditions are applied in the volume of cylinder formula,

Then we get$v=2V$