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9th Class Mathematics Triangles Question Bank Triangles

  • question_answer
    In \[\Delta ABC,\] \[AB=5\,\,cm,\] \[BC=6\,\,cm\] and\[CA=7\,\,cm\]. Identify the relation between the angles.

    A) \[ZB>ZA>ZC\]  

    B)        \[ZA>ZB>ZC\]  

    C)        \[ZB>ZC>ZA\]  

    D)        \[ZB>ZA>ZC\]  

    Correct Answer: A

    Solution :

    \[\angle A>\angle B>\angle C\] \[AC>BC\Rightarrow \angle B>\angle A\]              ?(i) Also, \[BC>AB\Rightarrow \angle A>\angle C\]      ?.(ii) From (i) and (ii), we have \[\angle B>\angle A>\angle C\]


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