static void Main(string[] args)
{
Triangle triangle = new Triangle();
InputShowTriangle inputShowT = InputShowDataT;
inputShowT(triangle);
Rectangular rect1 = new Rectangular();
InputShowRectangular inputShow = InputShowDataR;
inputShow(rect1);
}
static Rectangular InputShowDataR(Rectangular rect)
{
rect.Input();
Console.WriteLine(rect.ToString());
return(rect);
}