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Triangle DEF is similar to triangle PQR. Side DE measures 3, side EF measures 7 and side FD measures 9. Side PQ measures 5x – 25 and side QR measures 6x + 4. Find the value of x.

  • MATH -

    Since triangle DEF similar to triangle PQR. Therefore, their corresponding sides are in the ratio.
    3/7=5x-25/6x + 25
    On solving the equation we x = 11

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