Find the rate of change of the circumference of a circle per second with respect to its radius r when r = 3 cm.
Answer & explanation
Correct answer: option 4
dC/dt = \[2\pi \]
Find the rate of change of the circumference of a circle per second with respect to its radius r when r = 3 cm.
Correct answer: option 4
dC/dt = \[2\pi \]