What is the area of a circle with a radius of 4?

To find the area of a circle, the formula used is A = πr², where A represents the area and r is the radius of the circle. In this case, the radius is given as 4.

By substituting the radius into the formula, we calculate the area as follows:

A = π(4)²

A = π(16)

A = 16π.

Thus, the area of the circle with a radius of 4 is indeed 16π, which matches the answer provided. This reasoning emphasizes the importance of using the correct formula and substituting the radius accurately to arrive at the correct area for the circle.