2010年12月19日星期日

12 orthogons---part4:Trion and Hecton

Trion and hecton are interesting. It is clear that the name comes from the triangle and hexagon. see picture for details. You might be noticed that the outside rectangle of Hexagon is the trion. So that why the internal rectangle is selected. the yellow square is the unit square. so the ratio is easy to understand.

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