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rebeccaskell94

In the figure below, the length of line segment CB is 58 units and the length of line segment BG is 120 units. What is the length of line segment GE? http://learn.flvs.net/webdav/assessment_images/educator_geometry_v14/pool_Geom_3641_0404_07/image0084e2ee688.gif Does anyone know a formula I would use to solve this

  • one year ago
  • one year ago

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  1. rebeccaskell94
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    @ash2326

    • one year ago
  2. 91
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    use sin/cos

    • one year ago
  3. 91
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    to find BA , then subtract that from 120

    • one year ago
  4. 91
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    to find AG

    • one year ago
  5. 91
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    use trig again to find GE

    • one year ago
  6. rebeccaskell94
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    @ . @

    • one year ago
  7. mukushla
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    1......find AB using tan 45 in triangle ABC 2......find AG using AG=120-AB 3......find GE using tan 60 in triangle AGE o.O

    • one year ago
  8. ash2326
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    @rebeccaskell94 did you understand?

    • one year ago
  9. rebeccaskell94
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    Idunnow is mukushala and 91's ways good? how do you do sin/cos anyway D: urg I'm so confused. My brain is not a math brain :(

    • one year ago
  10. ash2326
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    I triangle CBA, what's tan 45? @rebeccaskell94

    • one year ago
  11. rebeccaskell94
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    Doesn't tan(45) = 1?

    • one year ago
  12. ash2326
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    yeah, you;re right but it's also perpendicular/ adjacent, isn't it?

    • one year ago
  13. rebeccaskell94
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    Idk what to do with it now D:

    • one year ago
  14. Calcmathlete
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    Remember how the legs of a 45-45-90 triangle are the same length? Can you find AG knowing that?

    • one year ago
  15. phi
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    Are you studying trig? these are 45-45-90 triangle and 30-60-90 triangle

    • one year ago
  16. rebeccaskell94
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    ummm can we have like, 1 person helping me xD too many is making it worse. It takes a while to help me bc my brain...it doesn't get along well with math

    • one year ago
  17. 91
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    ok, I am out

    • one year ago
  18. ash2326
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    I'll let others help here :P I'll observe silently :)

    • one year ago
  19. rebeccaskell94
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    But ashy!! D: I wanted you to help me xD

    • one year ago
  20. Calcmathlete
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    |dw:1343150968050:dw| If x = 58, can you figure the rest out?

    • one year ago
  21. Calcmathlete
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    I just used the ratio for a 45-45-90 triangle and 30-60-90 triangle.

    • one year ago
  22. ash2326
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    @rebeccaskell94 @Calcmathlete is a great helper, I'm sure you'll understand .

    • one year ago
  23. rebeccaskell94
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    Okay I has this XD|dw:1343151162714:dw|

    • one year ago
  24. Calcmathlete
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    Oh. You misread that part for AG....it said 120 - x. When I said to figure out the rest, I meant did you understand how to get the answer now using the ratios, but it's good practice XD Good job by the way :)

    • one year ago
  25. Calcmathlete
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    If you didn't notice, all it asked for was GE which you have as 62√3 which you have :)

    • one year ago
  26. rebeccaskell94
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    Oh wait, so are my ∆s right?

    • one year ago
  27. Calcmathlete
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    Yup :) Good work! That one part on the bottom of the 30-60-90 triangle is wrong because you misread it, but as long as you understand the concept, it's fine :)

    • one year ago
  28. rebeccaskell94
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    Which one?

    • one year ago
  29. Calcmathlete
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    |dw:1343151807943:dw|

    • one year ago
  30. rebeccaskell94
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    ohhhh okay

    • one year ago
  31. Calcmathlete
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    Yeah. I think you read it as 20 - x when it's 120 - x.

    • one year ago
  32. Calcmathlete
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    Good job though. 45-45-90 and 30-60-90 triangles can be very simple once you remember the ratios! :D

    • one year ago
  33. rebeccaskell94
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    Thank you :D

    • one year ago
  34. Calcmathlete
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    np :)

    • one year ago
  35. 91
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    good job , "becca"

    • one year ago
  36. rebeccaskell94
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    lol why the quotation marks around my name D:

    • one year ago
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