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gopeder

  • 2 years ago

OK I have two problems I'm stuck on can someone plz help me out and plz teach me how you solved it If b = 12, find c. If b = 3, find a.

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  1. gopeder
    • 2 years ago
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    its a triangle btw

  2. benice
    • 2 years ago
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    feels like the question is missing something

  3. gopeder
    • 2 years ago
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    the Picture but i don't think you need it

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  4. benice
    • 2 years ago
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    yes you need the pic ....its tells you the angles which tells the ratios of the sides to on another

  5. benice
    • 2 years ago
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    have you learned SOHCAHTOA? (theta\[\sin \Theta=opp/hyp \] \[\cos \Theta=adj/hyp\] \[\tan \theta=opp/adj\]

  6. benice
    • 2 years ago
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    |dw:1332188561682:dw|

  7. benice
    • 2 years ago
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    |dw:1332188855143:dw|

  8. benice
    • 2 years ago
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    for question a we know the adj and angle 60 degrees and we want to know hyp SohCahToa so we Cah \[Cos \theta=adj/hyp\]

  9. benice
    • 2 years ago
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    here adj = 12 , hyp = c and cos(60)

  10. benice
    • 2 years ago
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    i'd rather not tell you the answer but will help

  11. aroub
    • 2 years ago
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    OR did you take that: In semi equilateral triangle: The hypotenuse = 2 ( shorter leg) and the longer leg = square root of 3 times the shorter leg ?? * I think it's easier to use it in this problem.

  12. gopeder
    • 2 years ago
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    Kinda confused So we are just talking about the first one correct? haha im trying to put it all together in my head..

  13. benice
    • 2 years ago
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    ok yes we talking about the first one

  14. benice
    • 2 years ago
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    |dw:1332189439391:dw|

  15. gopeder
    • 2 years ago
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    ok that kinda makes more understand able and clear

  16. benice
    • 2 years ago
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    http://www.mathwords.com/s/sohcahtoa.htm

  17. benice
    • 2 years ago
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    can you work out c now?

  18. gopeder
    • 2 years ago
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    hmm SOH stands for Sine equals Opposite over Hypotenuse. B is the opposite side and C is the hypotenuse

  19. gopeder
    • 2 years ago
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    so its 12 over x 12 being B and x being C?

  20. benice
    • 2 years ago
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    |dw:1332189795874:dw|

  21. benice
    • 2 years ago
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    your getting the idea which is good ... you just mixed up the sides

  22. gopeder
    • 2 years ago
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    cant read what B is But on the diagram its the opposite side

  23. benice
    • 2 years ago
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    in the question 1 you said b =12 find c|dw:1332190095344:dw|

  24. gopeder
    • 2 years ago
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    Ugh im still confused what do I need to do to go about doing to find C? i thought I had to 12 over x

  25. benice
    • 2 years ago
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    cos (60)=12/x

  26. benice
    • 2 years ago
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    yes you right ... my bad you could also use |dw:1332190384723:dw|

  27. benice
    • 2 years ago
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    now can you draw in the opp , the adj and hyp

  28. gopeder
    • 2 years ago
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    Oh my god im confused :/ X can't = 6

  29. benice
    • 2 years ago
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    sin=opp/hyp sin 30 = 12/x 1/2=12/x .5x=12 x=24 .. sry your right i got it wrong

  30. gopeder
    • 2 years ago
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    Oh ok!! haha I thought it was 24 then you said 6 and i was TRIPPING out lmafo

  31. gopeder
    • 2 years ago
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    Ok for the second part im going to try that one can you check my answer? :)

  32. benice
    • 2 years ago
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    glad you get it ... certainly best of luck

  33. gopeder
    • 2 years ago
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    in this case its 3/x right?

  34. gopeder
    • 2 years ago
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    "TOA stands for Tangent equals Opposite over Adjacent."

  35. gopeder
    • 2 years ago
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    No that cant be right

  36. gopeder
    • 2 years ago
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    Trigonometry in geometry lol YEA!!! anyways the answer is 6.. found out after a lot of research on how do solve this problem @benice

  37. gopeder
    • 2 years ago
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    btw that was a Female dog to do.....lol

  38. benice
    • 2 years ago
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    congrats the answer is correct

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