The length x of a rectangle is decreasing at the rate of 3 cm/minute and the width y is increasing
Channel: Doubtnut
Date: 2020-07-05

The length x of a rectangle is decreasing at the rate of 3 cm/minute and the width y is increasing at the rate of 2cm/minute. When `x =10`cm and `y = 6`cm, find the rates of change of (a) the perimeter and (b) the area of the rectangle.