## anonymous one year ago if triangle ABC and triangle PQR ARE SIMILAR. FIND QR and PR. QR= PR=

1. anonymous

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2. mathstudent55

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

3. anonymous

but its kind of different when solving it idk how to

4. anonymous

15

5. mathstudent55

$$\dfrac{AB}{PQ} = \dfrac{BC}{QR}$$ $$\dfrac{3}{9} = \dfrac{5}{QR}$$ $$3(QR) = 5 \times 9$$ $$QR = \dfrac{5 \times 9}{3}$$

6. mathstudent55

Yes, 15 is correct for QR.

7. mathstudent55

$$\dfrac{AB}{PQ} = \dfrac{AC}{PR}$$ $$\dfrac{3}{9} = \dfrac{4}{PR}$$ $$3(PR) = 4 \times 9$$ $$PR = \dfrac{4 \times 9}{3}$$

8. anonymous

12

9. mathstudent55

Correct!

10. anonymous

thank you

11. mathstudent55

you're welcome