Revision history of "Talk:Parallel"

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  • (cur | prev) 02:52, 1 September 2008LuckyDay (talk | contribs). . (423 bytes) (+423). . (New page: I'm a middle school student who added the distance formula for the two non-vertical parallel lines in a coordinate plane. I know the proof of it, but I think my proof is too long and massy...)