GetSurface() public method

public GetSurface ( ) : double
return double
 public static void Main()
 {
     Circle circle = new Circle(5);
     Console.WriteLine("I am a circle. " +
         "My perimeter is {0:f2}. My surface is {1:f2}.",
         circle.GetPerimeter(), circle.GetSurface());
     Rectangle rect = new Rectangle(2, 3);
     Console.WriteLine("I am a rectangle. " +
         "My perimeter is {0:f2}. My surface is {1:f2}.",
         rect.GetPerimeter(), rect.GetSurface());
 }
        public static void Main()
        {
            Circle circle = new Circle(5);

            Console.WriteLine("I am a circle. " +
                              "My perimeter is {0:f2}. My surface is {1:f2}.",
                              circle.GetPerimeter(), circle.GetSurface());
            Rectangle rect = new Rectangle(2, 3);

            Console.WriteLine("I am a rectangle. " +
                              "My perimeter is {0:f2}. My surface is {1:f2}.",
                              rect.GetPerimeter(), rect.GetSurface());
        }
        public static void Main()
        {
            Circle firstCircle = new Circle();
            firstCircle.Radius = 2.215;
            Console.WriteLine("I am a circle with radius {0}! My perimeter is {1:f2}. My surface is {2:f2}.",
                firstCircle.Radius, firstCircle.GetPerimeter(), firstCircle.GetSurface());

            Circle secondCircle = new Circle(5);
            Console.WriteLine("I am a circle with radius {0}! My perimeter is {1:f2}. My surface is {2:f2}.",
                secondCircle.Radius, secondCircle.GetPerimeter(), secondCircle.GetSurface());

            Rectangle firstRectangle = new Rectangle();
            firstRectangle.Width = 5.1;
            firstRectangle.Height = 9;
            Console.WriteLine("I am a rectangle with width {0} and height {1}! My perimeter is {2:f2}. My surface is {3:f2}.",
                firstRectangle.Width, firstRectangle.Height, firstRectangle.GetPerimeter(), firstRectangle.GetSurface());

            Rectangle secondRectangle = new Rectangle(2, 3);
            Console.WriteLine("I am a rectangle with width {0} and height {1}! My perimeter is {2:f2}. My surface is {3:f2}.",
                secondRectangle.Width, secondRectangle.Height, secondRectangle.GetPerimeter(), secondRectangle.GetSurface());
        }