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9th Class Mathematics Coordinate Geometry Question Bank Co-ordinate Geometry

  • question_answer
    In the given figure, what is the length of AB?

    A)  13 units  

    B)  9 units

    C)  12 units                       

    D)  18 units

    Correct Answer: A

    Solution :

    (a): \[\therefore \]\[OA=5,OB=-12\] \[=\sqrt{{{5}^{2}}+{{(-12)}^{2}}}\] \[=\sqrt{25+144}\] \[=\sqrt{169}\] \[\therefore \]\[AB=13\]units                 


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