Let r be the radius of sphere.
Volume of the sphere = r3 cu. units
Surface area of the sphere = 4r2 sq. units
It is given that the volume and surface area of sphere are numerically same.
⇒ r = 3 units
Thus, the radius of sphere is 3 units.
If the volume and surface area of a sphere are numerically the same, then its radius is ___3 units___.