static void Main(string[] args)
{
Shape[] shapes = new Shape[4];
shapes[0] = new Circle(5);
shapes[1] = new Rectangle(10, 2);
shapes[2] = new Triangle(8, 6);
shapes[3] = new Square(5);
foreach(Shape shape in shapes)
{
Console.WriteLine(shape.GeneralInformation);
string type = shape.GetShapeType();
double area = shape.CalculateArea();
Console.WriteLine(string.Format("The size of the {0} area is {1:#.##}\n", type, area));
}
Rectangle rectangle = new Rectangle(2, 3);
Square square = new Square(5);
Console.WriteLine(string.Format("\nThe size of the {0} area is {1:#.##}\n", rectangle.GetShapeType(), rectangle.CalculateRectangleArea()));
Console.WriteLine(string.Format("The size of the {0} area is {1:#.##}\n", square.GetShapeType(), square.CalculateRectangleArea()));
Console.ReadLine();
}