public void Display()
{
Oct.Display();
Console.WriteLine("What is the Length: {0}", length);
string L = Console.ReadLine();
length = Convert.ToInt32(L);
Console.WriteLine("Whats the Width: {0}", width);
string W = Console.ReadLine();
width = Convert.ToInt32(W);
Console.WriteLine("Area: {0}", GetArea());
}
static void Main(string[] args)
{
// Rectangle Rec = new Rectangle(0,0);
// Rec.Display();
Square Sqr = new Square(0, 0);
Sqr.Display();
Triangle Tri = new Triangle(0, 0);
Tri.Display();
Octogon Oct = new Octogon(0, 0);
Oct.Display();
Console.ReadLine();
}