# triangle_area_formula.plot  18 January 2011
#
file oops.ps

  space -0.50 -0.50 6.50 4.50

  page

    line_rgb 0.5 0.5 0.5

    grid 0.0 0.0 6.0 4.0 7 5

    line_thick 3

    fill_rgb 0.35 0.95 0.9
    triangle_fill 0.0 0.0 6.0 0.0 2.0 4.0
#
#  Draw triangle boundaries.
#
    fill_rgb 0.0 0.0 0.0

    moveto   2.0  4.0
    drawto   0.0  0.0
    drawto   6.0  0.0
    drawto   2.0  4.0
    drawto   2.0  0.0
#
#  Label the plot.
#
    font_size 0.35
    line_rgb 0.0 0.0 0.0
    moveto -0.15 0.35
    label A
    moveto  6.0 0.25
    label B
    moveto  1.90 4.1
    label C
    moveto 1.5 -0.35
    label <--- base --->
    moveto 2.1 1.70
    label height
  endpage

endfile