using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("========================================");   

        Console.WriteLine("    HITUNG LUAS SEGITIGA BY NAYSHIFA    ");

        Console.WriteLine("========================================");

        float alas;

        float tinggi;

        float Luas;

​

        Console.WriteLine("Masukkan nilai alas : ");

        alas = float.Parse(Console.ReadLine());

        Console.WriteLine("Masukkan nilai tinggi: ");

        tinggi = float.Parse(Console.ReadLine());

        Luas = 1/2 * alas * tinggi ;

        Console.WriteLine(" a " + tinggi + " adalah " + Luas);

​

    }

}