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I have lost the book of my math course one day before the test. I want to review several formulas, but I haven't found them anywhere online. The formulas I am looking for are:

  • Symmetry of a line with respect to a point
  • Symmetry of a line with respect to another line
user2977079
  • 303
  • So the first one is rotating the line about the point 180 degrees, and the second is reflecting the line through the other line? Is this in 2d or 3d? – John Dec 17 '14 at 19:45
  • 2d only, have to clarify it up. Also reflect rather than rotate for the point. – user2977079 Dec 17 '14 at 19:51

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