Talk:Geometry Course/Polygon/Quadrilateral/Trapezoid

Inclusive definition of trapezoid
I started a section at Talk:Geometry/Trapezoids that is relevant here as well, but to avoid duplication, please post there. In a nutshell, I am recommending the inclusive definition of trapezoids. (Incidentally, I have spotted the inclusive definition already in use in two places in the wikibooks already.) Rschwieb (discuss • contribs) 20:37, 21 December 2012 (UTC)