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The radius of a circular plate is increa...

The radius of a circular plate is increasing at the rate of 0.01cm/sec when the radius is 12 cm. Then the rate at which the area increases is

A

`0.24 pi sq. cm/sec`

B

`60 pi sq. cm/sec`

C

`24 pi sq. cm/sec`

D

`1.2 pi sq. cm/sec`

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The correct Answer is:
A
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