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JEE Main & Advanced Mathematics Permutations and Combinations Question Bank Geometrical Problems

  • question_answer
    How many triangles can be drawn by means of 9 non-collinear points

    A) 84

    B) 72

    C) 144

    D) 126

    Correct Answer: A

    Solution :

    The number of triangles are\[^{9}{{C}_{3}}=84\].


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