Revision history of "Talk:Parallel"

Diff selection: Mark the radio boxes of the revisions to compare and hit enter or the button at the bottom.
Legend: (cur) = difference with latest revision, (prev) = difference with preceding revision, m = minor edit.

  • (cur | prev) 03:52, 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...)