Figures Drawing

//ИЗЧЕРТАВАНЕ НА ПРАВОЪГЪЛНИК И ТРИЪГЪЛНИК СЪС ЗВЕЗДИЧКА

//ИНТЕРФЕЙС DRAWABLE:
public interface Drawable
    {
        void Draw();
    }

//КЛАС RECTANGLE:
public class Rectangle : Drawable
    {
        private int Width;
        private int Height;

        public Rectangle(int Width, int Height)
        {
            this.Width = Width;
            this.Height = Height;
        }
        public void Draw()
        {
            DrawLine(this.Width, '*', '*');
            for (int i = 1; i < this.Height - 1; ++i)
                DrawLine(this.Width, '*', ' ');
            DrawLine(this.Width, '*', '*');
        }

        private void DrawLine(int width, char end, char mid)
        {
            Console.Write(end);
            for (int i = 1; i < width - 1; ++i)
                Console.Write(mid);
            Console.WriteLine(end);
        }
    }

//КЛАС TRIANGLE:
public class Triangle : Drawable
    {

        private int Side;

        public Triangle(int Side)
        {
            this.Side = Side;
        }

        public void Draw()
        {
            for (var row = 1; row <= this.Side; row++)
            {
                Console.Write("*");
                for (var col = 1; col < row; col++)
                {
                    Console.Write(" *");
                }
                Console.WriteLine();
            }

        }
    }

//ГЛАВНА ПРОГРАМА:
public class Program
    {
        static void Main(string[] args)
        {
            Drawable rect = new Rectangle(5,10);
            Console.WriteLine("Drawing rectangle like this:");
            rect.Draw();

            Drawable tr = new Triangle(5);
            Console.WriteLine("Drawing triangle like this:");
            tr.Draw();
        }
    }


//РЕЗУЛТАТ:
Drawing rectangle like this:
*****
*   *
*   *
*   *
*   *
*   *
*   *
*   *
*   *
*****
Drawing triangle like this:
*
* *
* * *
* * * *
* * * * *