10th Class Mathematics Triangles Question Bank Case Based (MCQs) - Triangles

  • question_answer
    The ratio of sides P'Q' and Q'R' is:

    A) \[\text{5}:7\]

    B) \[7:5\]

    C) \[7:2\]

    D) \[2:7\]

    Correct Answer: A

    Solution :

    \[P'Q'=3PQ=3\times 25=7.5\,cm\]
    and   \[Q'R'=3QR=3\times 3.5=10.5\,cm\]
    \[\therefore \,\,\frac{P'Q'}{Q'R'}=\frac{7.5}{10.5}=\frac{5}{7}\] or \[5:7\]
    So, option [a] is correct.

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