How do you find the area of a circle knowing only the circumference?

Answer 1

If circumference is C then the radius is C/(2*pi)

and then area = pi*r2 = C2/(4*pi)

Answer 2

To find the area of a circle knowing only the circumference, you can use the formula A = (C^2) / (4π), where A is the area and C is the circumference. Square the circumference, then divide it by 4π to get the area.