Find the rate of change of the area of a circle with respect to its radius when

MATHEMATICS · Multi-part · AP · Calculus AB · Contextual Applications of Differentiation · Contextual Applications of Differentiation

Problem

1. Find the rate of change of the area of a circle with respect to its radius

r

when (a)

r=3 \mathrm{~cm}

(b)

r=4 \mathrm{~cm}