Question

Say true or false.

If the radius of a cylinder is doubled and height is halved, the volume will be doubled.

• A. True
• B. False

Answer 1

The correct option is A True

We know, volume of the cylinder $=\pi r^{2}h$
Here, the radius is doubled and height is halved.
So, new volume $=\pi (2r{)}^2.\left(\frac{h}{2}\right)=2[\pi r^{2}h]$
Therefore, volume is doubled.
So, the given statement is correct.