The length 'x' of a rectangle is decreasing at the rate of `2cm//s` and the width 'y' is increasing at the rate of `2cm//s`.
Find the rate of change of perimeter.

The length 'x' of a rectangle is decreasing at the rate of 2cm//s and the width 'y' is increasing at the rate of 2cm//s . Find (dA)/(dt) when x=12 cm and y = 5 cm.

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 2 cm/ 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.

The length x of a rectangle is decreasing at the rate of 3 cm/minute and the width y is increasing at the rate if 2 cm/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.

The length of a rectangle is decreasing at the rate of 5 cm/mi and the width is increasing at the rate of 4cm/min.When length is 8 cm and width is 6 cm, find the rate of change of its area.

The radius of a cylinder is increasing at a rate of 1 cm//s and its height decreasing at a rate of 1 cm//s . Find the rate of change of its volume when the radius is 5 cm and the height is 5 cm.

The radius of a cylinder is increasing at the rate of 3m/s and its altitude is decreasing at the rate of 4m/s .The rate of change of volume when radius is 4m and altitude is 6m is : a) 80 pi " cu m" //s b) 144 pi " cu " m//s c) 80 " cu " m//s d) 64 " cu " m//s

The radius of a circle is increasing at the rate of 0.7 cm/s. What is the rate of increase of its circumference?

The radius of a cylinder increases at a rate of 1 cm/s and its height decreases at a rate of 1cm/s. Find the rate of change of its volume when the radius is 5 cm and the height is 15 cm. If the volume should not change even when the radius and height are changed, what is the relation between the radius and height?