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About the number of triangles of convex n-gon

  1. Oct 17, 2009 #1
    1. The problem statement, all variables and given/known data

    Suppose that no three of the diagonal of a convex n-gon meet at the same point inside of a n-gon. Find the number of different triangles the sides of which are made up of the sides of the n-gon, the diagonals and segments of the diagonals.

    How to find it~@~?
    2. Relevant equations



    3. The attempt at a solution
    1. The problem statement, all variables and given/known data



    2. Relevant equations



    3. The attempt at a solution
     
  2. jcsd
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