The height of a cylinder is equal to the radius. If an error of a% is made in the height, then percentage error in its volume, is

# The height of a cylinder is equal to the radius. If an error of $a%$ is made in the height, then percentage error in its volume, is

1. A

$a%$

2. B

$2a%$

3. C

$3a%$

4. D

none of these

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Let $h$ be the height of the cylinder. Then, its
volume $V$ is given by