Find the surface area of a sphere having a radius of 4".

Solution:

The Surface area of sphere = 4πr² square units.

Here radius, r = 4 inches

Required area = 4πr² square inches.

= 4π(4)²

=  4π.16

= 64π square inches. = 201.05 sq.in

Therefore, the surface area of the sphere is 64π square inches

Find the surface area of a sphere having a radius of 4".

Summary:

The surface area of a sphere having a radius of 4" is 64π square inches