Question

Find the surface area of a sphere with a diameter of 4 units in terms of pi

Answer 1

16π

Explanation:

The surface area of a sphere is:

A = 4πr²

where r is the radius, or half the diameter.

If the diameter is 4 units, then the radius is 2 units:

A = 4π (2)²

A = 16π

The surface area is 16π square units.