JEE MATHEMATICS MCQ: PERMUTATIONS

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ABCD is a convex quadrilateral.

3,4,5

and 6 points are marked on the sides

\mathrm{AB}, \mathrm{BC}, \mathrm{CD}

and

\mathrm{DA}

respectively. The number of triangles with vertices on different sides is

View answer and explanation

Correct option: A

342

Option A (342) is correct because it sums the number of triangles formed by choosing one vertex from each of the three sides in all possible combinations.

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