Swirling Heptagrins

Just experimenting with an idea from http://theworldandothershenanigans.blogspot.co.uk/2012/05/heptagrin-girl.html

Kathryn Peake — 24. maj 2012 - 13.57

Licens: CC-BY-SA, GeoGebra Terms of Use
Variationer af materialet: good2
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