public void drawTriangle(PaintEventArgs e, int x, int y, int distance)
    {
        float angle = 0;

        SolidBrush brs = new SolidBrush(Color.Green);

        PointF[] p = new PointF[3];

        p[0].X = x;

        p[0].Y = y;

        p[1].Y = (float)( x + distance * Math.Cos(angle + Math.PI / 3));

        p[1].X = (float)( y + distance * Math.Sin(angle + Math.PI / 3));

        p[2].Y = (float)( x + distance * Math.Cos(angle - Math.PI / 3));

        p[2].X = (float)( y + distance * Math.Sin(angle - Math.PI / 3));

        e.Graphics.FillPolygon(brs, p);
    }

p[0].X = x;

    p[0].Y = y;

    p[1].X = (float)( x + distance * Math.Cos(angle));

    p[1].Y = (float)( y + distance * Math.Sin(angle));

    p[2].X = (float)( x + distance * Math.Cos(angle + Math.PI / 3));

    p[2].Y = (float)( y + distance * Math.Sin(angle + Math.PI / 3));

var size = int.Parse(Console.ReadLine());
        for (int i = 1; i <= size; i++)
        {
            int leftPadding = 1 + (((2 * size - 1) - (2 * i + 1)) / 2);
            StringBuilder build = new StringBuilder();
            build.Append(new string(Enumerable.Repeat(' ', leftPadding > 0 ? leftPadding: 0).ToArray()));
            for (int j = 1; j <= i; j++)
            {
                build.Append("* ");
            }
            Console.WriteLine(build.ToString());
        }