using System;

public class Program

{

    public static void Main()

    {

          int a;

            int b;

            int c;

            int d;

            //Your code goes here

            Console.WriteLine("Calcular el area y perimetro de un triangulo equilatero");

            Console.ReadLine();

            Console.WriteLine ("Introduce la base");

            a= System.Convert.ToInt32 (Console.ReadLine());

            Console.WriteLine("introduce la altura");

            b= System.Convert.ToInt32 (Console.ReadLine());

            c= a*b /2;

            d= a*3;

            Console.WriteLine("El area es {0} y su perimetro {1}" , c,d);

            Console.ReadLine();

    }

}