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Possible gears?

Author:Daniel Mentrard
Topic:Geometry

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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