static void Main(string[] args)
{
var center = new Point(0, 0);
var circle = new Circle(center, 10);
Console.WriteLine(circle.GetArea());
Console.WriteLine(circle.IsInside(new Point(0, 0)));
Console.WriteLine(circle.IsInside(new Point(10, 0)));
Console.WriteLine(circle.IsInside(new Point(5, 5)));
Console.WriteLine(circle.IsInside(new Point(10, 10)));
var square = new Rectangle(new Point(-1, 1), new Point(1, -1));
Console.WriteLine(square.GetArea());
Console.WriteLine(square.IsInside(new Point(0, 0)));
Console.WriteLine(square.IsInside(new Point(1, 0)));
Console.WriteLine(square.IsInside(new Point(2, 2)));
}
