Practice problem
A circle of radius 2 cm2\ \textrm{cm}2 cm has area increasing at 8π cm2/sec8\pi \ \textrm{cm}^2/\textrm{sec}8π cm2/sec. How fast is the radius changing, in cm/sec\textrm{cm}/\textrm{sec}cm/sec?
2
4
6
8
Type a concept, like “slope” or “photosynthesis”.
