Let T_nbe the number of all possible triangles formed by joining | Filo
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class 11

Math

Algebra

Permutations and Combinations

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Let be the number of all possible triangles formed by joining vertices of an n-sided regular polygon. If , then the value of n is

  1. 5
  2. 10
  3. 8
  4. 7
Correct Answer: Option(a)
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