Find the area of a circle given C=4π. Give your answer in terms of π.
The formula for finding the area of a circle given the circumference is:
A = (C^2) / (4π)
Substitute C = 4π:
A = (4π)^2 / (4π)
A = 16π / 4
A = 4π
Therefore, the area of the circle is 4π.