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Relation between all 10 distance of 5 points

  1. Feb 7, 2010 #1
    If you specify all 6 distances between 4 points A, B, C, D you fix a tetraeder. If you now give three distances AM, BM, CM to a central point M you determine the position of that point within the tetraeder.
    So theoretically one could calculate DM now?!

    So my question is:
    What is the relation between distances
    AB, AC, AD, AM, BC, BD, BM, CD, CM, DM
    in euclidean space?
  2. jcsd
  3. Feb 7, 2010 #2
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