457 bytes added
, 19:04, November 13, 2010
Perhaps my deletion of this article was hasty, but it didn't seem well-written and I thought it contained deliberately inserted errors.
I'll give it another week or two, if Sam or anyone wants to fix it up.
Note: I'd like this article to be readily understood, even by readers who did not get good marks in [[plane geometry]] or who managed to skip it somehow. --[[User:Ed Poor|Ed Poor]] <sup>[[User talk:Ed Poor|Talk]]</sup> 14:04, 13 November 2010 (EST)