static void Main(string[] args)
{
Triangle tr1 = new Triangle(3, 4, 5);
Triangle tr2 = new Triangle(2, 3, 3);
Circle c1 = new Circle(22);
Circle c2 = new Circle(11);
IAreaCalculatable i1 = tr1;
IAreaCalculatable i2 = tr2;
IAreaCalculatable i3 = c1;
IAreaCalculatable i4 = c2;
double a1 = AreaCalculator.GetArea(i1);
double a2 = AreaCalculator.GetArea(i2);
double a3 = AreaCalculator.GetArea(i3);
double a4 = AreaCalculator.GetArea(i4);
}
public AreaCalculator(IAreaCalculatable figure)
{
this.figure = figure;
}