1.The radius of a circle is increasing at a rate of 0.10.10.1 cm s−1^{-1}−1. Then the rate of change of area, when its radius is 555 cm, isa.π2\pi^2π2 cm2^22 s−1^{-1}−1b.π\piπ cm2^22 s−1^{-1}−1c.2π2\pi2π cm2^22 s−1^{-1}−1d.π2\frac{\pi}{2}2π cm2^22 s−1^{-1}−1Login to continueOnly logged in users canattempt or see the solution.
