# A circle has an initial radius of 50 ft. when the radius begins decreasing at the rate of 3 ft/min. What is the rate in the change of area at the instant the radius is 28 ft?

Question

A circle has an initial radius of 50 ft. when the radius begins decreasing at the rate of 3 ft/min. What is the rate in the change of area at the instant the radius is 28 ft?