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10th Class Mathematics Triangles Question Bank Triangles

  • question_answer
    Semi-perimeters of two similar triangles PQR and LMN are 10 cm & 15 cm respectively. If LM = 9 cm, find PQ?                          

    A)  18                               

    B)  6 cm  

    C)  8cm                            

    D)  13.5 cm                                      

    Correct Answer: B

    Solution :

    (b): Ratio of semi perimeters = Ratio of sides So, ratio \[2:3\] is maintained, which can also be shown as                                       


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