If a circular plate is heated uniformly, its area expands 3c times as fast as its radius, then the value of c when the radius is 6 units, is

If a circular plate is heated uniformly, its area expands 3c times as

1.	If a circular plate is heated uniformly, its area expands 3c times as fast as its radius, then the value of c when the radius is 6 units, is
A.	\[4\pi \]
B.	\[2\pi \]
C.	\[6\pi \]
D.	\[3\pi \]
Answer» B. \[2\pi \]

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If a circular plate is heated uniformly, its area expands 3c times as fast as its radius, then the value of c when the radius is 6 units, is

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