[Solution Library] The radius r of a circle is increasing at a rate of 3cm per minute. Find the rate of change of the area when A. r=5cm and B. r=20cm Note:
Question:
The radius r of a circle is increasing at a rate of 3cm per minute. Find the rate of change of the area when A. r=5cm and B. r=20cm Note: \(A=\pi {{r}^{2}}\)
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