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Miscellaneous·2021·Easy

Consider a regular polygon with 10 sides. What is the number of triangles that can be formed by joining the vertices which have no common side with any of the sides of the polygon?

Consider a regular polygon with 10 sides. What is the number of triangles that can be formed by joining the vertices which have no common side with any of the sides of the polygon?

Options

  1. a.

    25

    Correct answer
  2. b.

    50

  3. c.

    75

  4. d.

    100

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