Multiple Choice Questions on The number of diagonals of a polygon of n sides is ........ for 11th Standard Preparation

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Multiple Choice Questions

The number of diagonals of a polygon of n sides is ........

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    The number of diagonals of a polygon of n sides is

    \frac{n(n-1)}{2}

    Incorrect Answer

    \frac{n(n-3)}{2}

    Correct Answer

    \frac{(n-1)(n-2)}{2}

    Incorrect Answer

    none

    Incorrect Answer
    Explanation:

    \frac{n(n-3)}{2}

    By: Swaminath Yadav
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