using System;

using System.Collections.Generic;

using System.Text;

 

namespace bar

{

    public class bar

    {

        /* chon mikhaham az karbar zele1 va zele 2 ra begiram pas z1 va z2 ra az nooe public

         tarif mikonam

         ama chon z mohasebate dakheliye class ast va nemikhaham karbar taghir dahad

         az nooe private tarif mikonam*/

       

        

        public double z1=0;

        public double z2=0;

        private double z=0;

        public double mohit()

        {

            z=((z1+z2)*2);

            return (z);

        }

        public double masahat()

        {  

            z=z1*z2;

 

            return (z);

        }

        public double ghotr()

        {

            /* tebghe asle fisaghores ghotr ra be dast mi avaram*/

            return (Math.Sqrt(z1*z1+z2*z2));

        }

    }

}