Question

If the circumference of a circle is 30π in, find the area of the circle.

Answer 1

@oliver69

Answer 2

Well you need to know the formula which is A = π r^2.
But first you need to find the radius from the circumference, which is r = c / (2 * π)
which if we plugged 30 it would be r = 30 / (2 * π )
Once you solve that you should get 4.77464829276, which is rounded to 4.77

Then you can plug that into the equation to find the area.
A = π (4.77)^2
A = 71.4803434879
A = 71.5 inches