Question

If the rate of change of area bounded by circle is equal to the rate of change
of its radius, find the radius of the circle.

Answer 1

Answer:

1/(2×pi)

Step-by-step explanation:

rate of change of area = rate of change of radius

dA/dt = dr/ dt

2×pi× r × dr/dt = dr/dt

2×pi× r = 1

So, r = 1/(2×pi)