static void Main(string[] args)
{
Circle c = new Circle();
Console.WriteLine("Circumference of Circle is " + c.getCircumference());
Console.WriteLine(c.ToString());
Rectangle r = new Rectangle();
r.setLength(5);
r.setWidth(5);
Console.WriteLine("perimeter Rectangle is " + r.getPerimeter());
Console.WriteLine("area Rectangle is " + r.getArea());
Console.WriteLine(r.ToString());
}
