Question

The area of paper required to make a hollow cylinder is equal to the curved surface area of the cylinder.

• A. True
• B. False

Answer 1

The correct option is A

True

Consider a rectangular paper of dimensions a $\times$ b.

When it folds along its length or width, it will form a hollow cylinder. The curved surface area of the cylinder formed is equal to the area of the rectangular paper.
Curved surface area of cylinder = a $\times$ b
So, the given statement is true.