Possible gears?

Autor:Daniel Mentrard

http://dmentrard.free.fr/GEOGEBRA/Maths/StrangearsMD.html

http://dmentrard.free.fr/GEOGEBRA/Maths/StrangearsMD.html

http://dmentrard.free.fr/GEOGEBRA/Maths/StrangearsMD.html

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