static void Main(string[] args) { //First instance of the Rectangel Rectangle r1 = new Rectangle(); r1.Length = 8; r1.Width = 8; double area = r1.CalculateArea(); Console.WriteLine($"Rectangle 1 - L:{r1.Length}, W:{r1.Width}, A{area}, R:{r1.CalculatePerimeter()}"); //Second instance of the Rectangle Rectangle r2 = new Rectangle(15, 11); Console.WriteLine($"Rectangle 2 - L:{r2.Length}, W:{r2.Width}, A{r2.CalculateArea()}, R:{r2.CalculatePerimeter()}"); r2.Width = 10; Console.WriteLine("Changed width to 10"); Console.WriteLine($"Rectangle 2 - L:{r2.Length}, W:{r2.Width}, A{r2.CalculateArea()}, R:{r2.CalculatePerimeter()}"); //First instance of Circle Circle c1 = new Circle(); c1.Radius = 3.333; Console.WriteLine($"C1 - R:{c1.Radius}, A:{c1.CalculateArea()}, P:{c1.CalculatePerimeter()}"); Circle c2 = new Circle(); c2.Radius = 4.444; Console.WriteLine($"C1 - R:{c2.Radius}, A:{c2.CalculateArea()}, P:{c2.CalculatePerimeter()}"); Console.WriteLine(c2); }