Question
The radius of a circle is increasing at the rate of 0.7 cm/s. What is the rate of increase of its circumference?
Solution
The circumference of a circle (C) with radius (r) is given by
C = 2πr.
Therefore, the rate of change of circumference (C) with respect to time (t) is given by,
Hence, the rate of increase of the circumference is `2pi(0.7) = 1.4 pi "cm/s"`
Is there an error in this question or solution?
Solution The Radius of a Circle is Increasing at the Rate of 0.7 Cm/S. What is the Rate of Increase of Its Circumference? Concept: Rate of Change of Bodies Or Quantities.
