Changes
Agree with vertex orthogonality
:: A vertex is not just a point, otherwise you'd just call it a point. Vertex can refer to the angle of the intersection of the rays defining the edges. Therefore, a vertex can indeed be orthogonal. A vertex can also be convex or concave (reflex). [[User:QNA|QNA]] 11:59, 22 May 2007 (EDT)
:::You are correct on that one QNA. [[User:Gerrard|Gerrard]] 12:03, 22 May 2007 (EDT)
