The radius of a circle is uniformly increasing at the rate of 3 cm/s. What is the rate of increase in area, when the radius is 10 cm?

The radius of a circle is uniformly increasing at the rate of 3 cm/s.

1.	The radius of a circle is uniformly increasing at the rate of 3 cm/s. What is the rate of increase in area, when the radius is 10 cm?
A.	\[6\pi \,c{{m}^{2}}/s\]
B.	\[10\pi \,c{{m}^{2}}/s\]
C.	\[30\pi ;c{{m}^{2}}/s\]
D.	\[60\,\pi \,c{{m}^{2}}/s\]
Answer» E.

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The radius of a circle is uniformly increasing at the rate of 3 cm/s. What is the rate of increase in area, when the radius is 10 cm?

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