The diagonal of square is changing at the rate of `0.5 cms^(-1)`. Then the rate of change of area, when the area is `400 cm^(2)`, is equal to

The diagonal of a square is changing at the rate of 0.5cm s^-1 . Then the rate of change of area, when the area is 400 cm^2 is equal to

The radius of a sphere is changing at the rate of 0.1 cm/sec. The rate of change of its surface area when the radius is 200 cm is

The radius of a sphere is changing at the rate of 0.1 cm/sec. The rate of change of its surface area when the radius is 200 cm is

If the length of the diagonal of a square is increasing at the rate of 0.2 cm/sec, then the rate of increase of its area when its side is 30//sqrt(2) cm, is

If the length of the diagonal of a square is increasing at the rate of 0.2 cm/sec, then the rate of increase of its area when its side is 30//sqrt(2) cm, is

The side of a square is increasing at the rate of 0.5 cm/sec. Find the rate of increase of its area, when the side of square is 20 cm long.

The diagonal of a suare is increasing at the rate of 0.5 cm/sec. when the area of a square is 400 cm^(2) , the area is increasing at the rate of ………….

If the length of the diagonal of a square is increasing at the rate of 0.1 cm/sec what is the rate of increase of its area when the side is (15)/(sqrt2) cm?

If the radius of the circle changes at the rate of 0.04 cm//sec , then the rate of change of its area, when radius is 10 cm, is