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Jul 21, 2013 at 19:54 comment added Joseph O'Rourke (Re-added the image, as the link was broken.)
Jul 21, 2013 at 19:48 history edited Joseph O'Rourke CC BY-SA 3.0
Image link broken, so I copied it directly.
Jul 21, 2013 at 17:55 history edited Lee Mosher CC BY-SA 3.0
added clarifications to the statement of the question
Mar 21, 2011 at 18:21 answer added zeb timeline score: 8
Mar 21, 2011 at 15:58 comment added Joseph O'Rourke I took the liberty of adding an image (from math.cornell.edu/~mec/Summer2009/Remus/lesson2.html).
Mar 21, 2011 at 15:58 history edited Joseph O'Rourke CC BY-SA 2.5
Image added
Mar 21, 2011 at 15:34 vote accept onthestairs
Mar 21, 2011 at 15:33 vote accept onthestairs
Mar 21, 2011 at 15:33
Mar 21, 2011 at 13:06 answer added Gjergji Zaimi timeline score: 9
Mar 21, 2011 at 11:57 history asked onthestairs CC BY-SA 2.5