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anonymous

  • one year ago

∆ABC is similar to ∆PQR. AB¯¯¯¯¯ corresponds to PQ¯¯¯¯¯, and BC¯¯¯¯¯ corresponds to QR¯¯¯¯¯. If the length of AB¯¯¯¯¯ is 9 units, the length of BC¯¯¯¯¯ is 12 units, the length of CA¯¯¯¯¯ is 6 units, and the length of PQ¯¯¯¯¯ is 3 units, then the length of QR¯¯¯¯¯ is ______(fill in) units and the length of RP¯¯¯¯¯ is ________(fill in) units.

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  1. Baseballguy101
    • one year ago
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    do you have a picture?

  2. anonymous
    • one year ago
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    There is no picture... :(

  3. Baseballguy101
    • one year ago
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    ok first thing i would do is draw out your triangles and fill in the known lengths

  4. Baseballguy101
    • one year ago
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    if you do that you will see that AB is 9 and PQ is 3 being similar triangles all the angles will work with that ratio. So doing 9/3 which ='s 3 you would divide the other angles by 3 so BC is 12 so divide that and you find QR

  5. anonymous
    • one year ago
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    |dw:1434992376428:dw|I'm not sure where to go from this, lol.

  6. Baseballguy101
    • one year ago
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    do you need me to draw it out or did that make sense?

  7. anonymous
    • one year ago
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    Wait, I do not understand?

  8. Baseballguy101
    • one year ago
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    ok ill draw it out one moment

  9. anonymous
    • one year ago
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    Alright, thank you.

  10. Baseballguy101
    • one year ago
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  11. anonymous
    • one year ago
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    So I just cut the proportions in half?

  12. Baseballguy101
    • one year ago
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    thirds, i set the problems up for you here does it make sense now?

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  13. anonymous
    • one year ago
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    Yes, I will let you check my answers in a moment.

  14. anonymous
    • one year ago
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    Yes?

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  15. anonymous
    • one year ago
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    WOW. No the second one should be two, right? Wow me.

  16. Baseballguy101
    • one year ago
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    nope. Think of it like the last problem this is all just proportions. Think the triangle on the right is 1/3 the size of the other one and you just divide all the lengths on the left by 3 so QR = 4 and Rp = 2

  17. Baseballguy101
    • one year ago
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    wait yes to that lol

  18. anonymous
    • one year ago
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    Welp, I feel dumb, lmao.

  19. anonymous
    • one year ago
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    Sweet, I passed!

  20. Baseballguy101
    • one year ago
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    XD we all make those mistakes at one point or another

  21. Baseballguy101
    • one year ago
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    100%?

  22. anonymous
    • one year ago
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    I blame me going to bed at 2 and waking up at 6. And no, I got 4/5 correct though. It was from a question I tried to do on my own, lol.

  23. Baseballguy101
    • one year ago
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    lol ok if you want to redo it at any time for a 100 ill help

  24. anonymous
    • one year ago
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    If only I could lol. Auto submits, no retries unless I fail. :(

  25. Baseballguy101
    • one year ago
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    oh wow my class I can redo up to 3 times

  26. anonymous
    • one year ago
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    Lucky. :(

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