Write a program that Calculates areas of circle by using methods.

INPUT:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace ConsoleApplication20
{

class myclass

    {

        public double  method(double  r)

    {

        double  A = 3.14 * r * r;

        return A;

    }

        static void Main(string[] args)

        {

            double radius;

            Console.WriteLine("plz enter the radius");

            radius=Convert.ToDouble(Console.ReadLine());

            myclass m = new myclass();

         

          Console.WriteLine("the Area of the circle is {0}",m.method(radius));

        }

        

    }

}

OUTPUT: