The volume of a sphere is increasing at the rate of 8 cm3/sec. Find the rate at which its surface area is increasing when the radius of the sphere is 12cm.

The volume of a sphere is increasing at the rate of 8 cm3/sec. Find th

1.	The volume of a sphere is increasing at the rate of 8 cm3/sec. Find the rate at which its surface area is increasing when the radius of the sphere is 12cm.
Answer» The volume of a sphere is increasing at the rate of $8 c m^{3} / s e c$ . Find the rate at which its surface area is increasing when the radius of the sphere is $12 c m$ .