PolygonPat's PolyPlate Grid
Want to have a go at
designing your own
PolyPlate  from one of the
two isosceles isosceles
triangles needed for the plate
centre? Then, join the dots
together using basic right
angled triangles, squares or
rectangular shapes to form a

symmetrical
 pattern. Colour
in your finished design.

Then photocopy your design,
cut around the outside,
rotate it and place against
this existing design, so that
you end up with a square.
You can now see how your
finished design would look
like as a plate centre.