A circle is inside a square. The radius of the circle is decreasing at a rate of 3 meters per day and the sides of the square

Question

A circle is inside a square. The radius of the circle is decreasing at a rate of 3 meters per day and the sides of the square are increasing at a rate of 4 meters per day. When the radius is 3 meters, and the sides are 15 meters, then how fast is the AREA outside the circle but inside the square changing?

Kunduz · Accepted Answer

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