static void Main(string[] args)
{
var sqr3 = new Sqr3(7);
Console.WriteLine($"The perimeter of the square is {sqr3.Perimeter()} and the area is {sqr3.Area()}");
var rect3 = new Rect3(5, 2);
Console.WriteLine($"The perimeter of the square is {rect3.Perimeter()}");
var x = 0;
var sqr1 = new Sqr(9);
var rect1 = new Rect(7, 2);
var quad1 = new Quad(4, 6, 1, 3);
Console.WriteLine($"The perimeter of the square is {sqr1.Perimeter()} and the area is {sqr1.Area()}");
Console.WriteLine($"The perimeter of the rectangle is {rect1.Perimeter()} and the area is {rect1.Area()}");
Console.WriteLine($"The perimeter of the quadrilater is {quad1.Perimeter()}");
var sqr2 = new Sqr2(5);
var rect2 = new Rect2(6, 3);
}
