Find the rate of change of the area of a circle per second when the radius increases at a speed of 8 cm/s and diameter D = 10 cm.
Answer & explanation
Correct answer: option 1
dA/dt = \[4r\pi \]
Find the rate of change of the area of a circle per second when the radius increases at a speed of 8 cm/s and diameter D = 10 cm.
Correct answer: option 1
dA/dt = \[4r\pi \]