Respuesta :

The circumference is the radius times 2 times 3.14

Set up the formula for the area of a circle.
The formula is A = πr^2 {A=\pi r^{2}} , where A  equals the area of the circle, and r equals the radius.Solve for the radius. ...
Plug the area into the formula. ...
Divide the area by . ...
Take the square root.