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9th Class Mathematics Geometry Question Bank Geometry

  • question_answer
    In the given figure, if AL is the bisector of \[\Delta \,ABC\], then AB is a

    A) 7 cm                     

    B) 10  cm                     

    C) 15 cm                  

    D) 22.50 cm                    

    Correct Answer: B

    Solution :

      From the given figure, \[\frac{BL}{LC}=\frac{AB}{AC}\] (Angle bisector theorem) or            \[\frac{4}{3}=\frac{AB}{7.5}\] or            \[AB=10\,cm\]


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