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9th Class Mathematics Sample Paper Maths Olympiad Model Test Paper-16

  • question_answer
    ABCD is a trapezium in which\[AB\parallel CD\]. Then \[A{{C}^{2}}+B{{D}^{2}}\] is equal to:

    A)  \[A{{D}^{2}}+B{{C}^{2}}-2AB.CD\]

    B)  \[A{{D}^{2}}+B{{C}^{2}}+2AB.CD\]

    C)  \[A{{D}^{2}}-B{{C}^{2}}+2AB.CD\]

    D)  \[A{{D}^{2}}-B{{C}^{2}}-2AB.CD\]

    E)  None of these

    Correct Answer: B

    Solution :

     Not Available


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