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anonymous

  • one year ago

if triangle ABC and triangle PQR ARE SIMILAR. FIND QR and PR. QR= PR=

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  1. anonymous
    • one year ago
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    |dw:1436546792547:dw|

  2. mathstudent55
    • one year ago
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    This problem is just like the one we did before. Use the same proportions with the new numbers to find the answer.

  3. anonymous
    • one year ago
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    but its kind of different when solving it idk how to

  4. anonymous
    • one year ago
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    15

  5. mathstudent55
    • one year ago
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    \(\dfrac{AB}{PQ} = \dfrac{BC}{QR} \) \(\dfrac{3}{9} = \dfrac{5}{QR} \) \(3(QR) = 5 \times 9\) \(QR = \dfrac{5 \times 9}{3} \)

  6. mathstudent55
    • one year ago
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    Yes, 15 is correct for QR.

  7. mathstudent55
    • one year ago
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    \(\dfrac{AB}{PQ} = \dfrac{AC}{PR} \) \(\dfrac{3}{9} = \dfrac{4}{PR} \) \(3(PR) = 4 \times 9\) \(PR = \dfrac{4 \times 9}{3} \)

  8. anonymous
    • one year ago
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    12

  9. mathstudent55
    • one year ago
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    Correct!

  10. anonymous
    • one year ago
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    thank you

  11. mathstudent55
    • one year ago
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    you're welcome

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spraguer (Moderator)
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