This image is a derivative work of the following images: Image:Pythagoras_stelling.png licensed with Cc-by-sa-3.0,2.5,2.0,1.0, GFDL 2007-11-17T20:07:48Z...
following images: 2003-11-05T21:30:00Z Andre Engels 162x315 (2 kB) (Stelling van Pythagoras; gemaakt voor Wikipedia door N.N.) English French Relation entre...
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