Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
KVPY2010MathematicsPermutation and Combination

The number of rectangles that can be obtained by joining four of the twelve vertices of a 12 -sided regular polygon is-

Options

  1. A66
  2. B30
  3. C24
  4. D15

Correct answer

D. 15

Step-by-step solution

Number of diagonals passing through centre =6 . number of rectangles = 6 2 =15

Practice Permutation and Combination on Quantrex Academy →

More from Permutation and Combination

All Permutation and Combination questions Full Permutation and Combination list All KVPY PYQs