Respuesta :

Hi!

The circumference of the circle is calculated like this:

C = 2*r*pi = 2*4*3,14 = 25,120 meters

The area of the circle is calculated like this:

A = r^2 * pi = 4^2 * 3,14 = 16 * 3,14 = 50,240 squared meters

Hope this helps!