Asked by David
The radius of a circle in increasing at the rate of 0.5cm/s. Find the rate at which the circumference increases if the radius in 5cm.
Answers
Answered by
Reiny
C = 2πr
dC/dt = 2π dr/dt
= 2π(.5) cm/s
= π cm/s
dC/dt = 2π dr/dt
= 2π(.5) cm/s
= π cm/s
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