(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

The radius of a circle is increasing at a constant rate of 0.2 meter per second. What is the rate of increase in the area of the circle at the instant when the circumference of the circle is 20pi meters?

2. Relevant equations

3. The attempt at a solution

I have no clue how to approach the problem

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# Homework Help: Rate of increase

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