An interlaced 9/2 star polygon visually arranged to be in the form of three intersecting triangles (i.e. 9/3 star polygon), and colored to highlight the triangles.
AnonMoos
<p>Self-made graphic, converted from a version of the following vector PostScript source code:
</p>
<pre>%!
300 396 translate 0 200 moveto 1 setgray 11.25 setlinewidth 1 1 8{80
mul 90 add/x exch def x 40 sub cos 106.417777 mul x 40 sub sin
106.417777 mul lineto x cos 200 mul x sin 200 mul lineto}for 50 cos
106.417777 mul 50 sin 106.417777 mul lineto closepath gsave 0
setgray 27 setlinewidth stroke grestore stroke 0 1 8{pop 80 rotate
0 setgray 27 setlinewidth 67.5 -100 moveto 34 0 rlineto stroke 1
setgray 11.25 setlinewidth 66.5 -100 moveto 36 0 rlineto stroke}for
showpage
%EOF</pre>