public static void Main()
Console.WriteLine("Angelica Janeth De leon Mendiola");
Console.WriteLine("--------------------------------");
Console.Write("Check whether a triangle is Equilateral, Isosceles or Scalene:\n");
Console.Write("Input side 1 of triangle: ");
sidea= Convert.ToInt32(Console.ReadLine());
Console.Write("Input side 2 of triangle: ");
sideb= Convert.ToInt32(Console.ReadLine());
Console.Write("Input side 3 of triangle: ");
sidec= Convert.ToInt32(Console.ReadLine());
if(sidea==sideb && sideb==sidec)
Console.Write("This is an equilateral triangle.\n");
else if(sidea==sideb || sidea==sidec || sideb==sidec)
Console.Write("This is an isosceles triangle.\n");
Console.Write("This is a scalene triangle.\n");