How many quadrilaterals can be formed by joining the vertices of an octagon?

• The number of quadrilaterals that can be formed by joining the vertices of a polygon of n sides are
  
  n(n−1)(n−2)(n−3)/24
  so here n=8
  ans is 70
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• nc4 ---- > n = 8
• 9 years agoHelpfull: Yes(0) No(0)