circulo

Using System;

namespace Figuras

{

class Circulo

{

double Area (int r)

{

double a = Math.PI * Math.Pow (r,2);

return a;

}

double Perimetro (int d)

{

double a = Math.PI * d;

return a;

}

Static void Main ( )

{

Console.WriteLine("Da el radio");

int r = int.Parse (Console.ReadLine ());

Circulo c = new Circulo ( );

Console.WriteLine ("area del círculo {0:n} \ n", c. Area (r) );

Console.WriteLine ("perimetro del círculo {0:n} \ n", c. Perimetro (r*2) );

}

}

}