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highschoolmom2010

  • 2 years ago

Find the value of each variable. If your answer is not an integer, express it in simplest radical form

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  1. highschoolmom2010
    • 2 years ago
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    @jdoe0001

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  2. jdoe0001
    • 2 years ago
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    hehe, same thing you see the 30, 60 and 90 angles?

  3. highschoolmom2010
    • 2 years ago
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    yes

  4. highschoolmom2010
    • 2 years ago
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    |dw:1375657637657:dw|

  5. jdoe0001
    • 2 years ago
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    so their relationship are |dw:1375657891270:dw|

  6. highschoolmom2010
    • 2 years ago
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    that is where i started getting confused....

  7. jdoe0001
    • 2 years ago
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    ok, which part throws you off?

  8. highschoolmom2010
    • 2 years ago
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    |dw:1375657762568:dw|

  9. highschoolmom2010
    • 2 years ago
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    ^^that

  10. jdoe0001
    • 2 years ago
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    what that means is just that the longest side is TWICE as much as the smallest side so "2a" is twice as much as "a" so if I had a 30-60-90 triangle whose smallest side were say 25 then the longest will be TWICE as much, or 50, thus |dw:1375658213907:dw|

  11. jdoe0001
    • 2 years ago
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    if I had a 30-60-90 triangle whose smallest side were say "WHATEVER" my longest side will be "WHATEVER" x 2

  12. jdoe0001
    • 2 years ago
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    still confused?

  13. highschoolmom2010
    • 2 years ago
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    not on the 2a part but what about the a sqrt3

  14. ienarancillo
    • 2 years ago
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    you just have to multipy the 20 with the sqrt of 3.

  15. ienarancillo
    • 2 years ago
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    first, you have to divide 40 by 2, in order to find a. cos its 2a/2 > you will now find a. and then there it says "a sqrt of 3", so you just have to multiply a with sqrt of 3.

  16. ienarancillo
    • 2 years ago
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    do u get it? :)

  17. phi
    • 2 years ago
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    btw, this video goes over 45-45-90 and 30-60-90 triangles. These videos are helpful

  18. highschoolmom2010
    • 2 years ago
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    i have never used any terms relating to trig so no i dont really get it :( @phi what video??

  19. highschoolmom2010
    • 2 years ago
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    oh ok ill watch it

  20. Krishnadas
    • 2 years ago
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    @highschoolmom2010 got the answer?

  21. highschoolmom2010
    • 2 years ago
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    nope not even close

  22. Krishnadas
    • 2 years ago
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    ok...you want to find x and y..right?

  23. Krishnadas
    • 2 years ago
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    You know about trigonometry ratios?

  24. highschoolmom2010
    • 2 years ago
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    yea.. i tried to do it and was told it was wrong so i got confused nope im in geometry

  25. highschoolmom2010
    • 2 years ago
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    @phi it kinda helped me figure that sqrt 3 part bu tnot how to do the problem

  26. Krishnadas
    • 2 years ago
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    |dw:1375807850273:dw|

  27. phi
    • 2 years ago
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    in that case watch the video where he does examples

  28. Krishnadas
    • 2 years ago
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    or we can go using geometry

  29. highschoolmom2010
    • 2 years ago
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    that would help better

  30. Krishnadas
    • 2 years ago
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    ok

  31. Krishnadas
    • 2 years ago
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    this is a 30-60-90 triangle

  32. Krishnadas
    • 2 years ago
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    |dw:1375808252038:dw|

  33. Krishnadas
    • 2 years ago
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    this means BC is AB*root 3

  34. Krishnadas
    • 2 years ago
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    and AC is AB*2

  35. Krishnadas
    • 2 years ago
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    okay?

  36. highschoolmom2010
    • 2 years ago
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    ok

  37. Krishnadas
    • 2 years ago
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    so BC=root3 *(x) =y

  38. Krishnadas
    • 2 years ago
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    and AC=x(*2)=40

  39. highschoolmom2010
    • 2 years ago
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    can u draw what u are saying im *more visual*

  40. Krishnadas
    • 2 years ago
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    |dw:1375808671220:dw|

  41. Krishnadas
    • 2 years ago
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    from this x=20 and put that x to find y

  42. highschoolmom2010
    • 2 years ago
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    |dw:1375808797534:dw|

  43. Krishnadas
    • 2 years ago
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    yes

  44. highschoolmom2010
    • 2 years ago
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    like that ????

  45. Krishnadas
    • 2 years ago
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    yes...you got it

  46. highschoolmom2010
    • 2 years ago
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    so so what now....

  47. Krishnadas
    • 2 years ago
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    x=20 and y=20 root3

  48. highschoolmom2010
    • 2 years ago
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    HOLY COW I DID IT :DDDDD

  49. Krishnadas
    • 2 years ago
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    hmm...Congrats....:D

  50. highschoolmom2010
    • 2 years ago
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    TY @Krishnadas & @phi @jdoe0001

  51. Krishnadas
    • 2 years ago
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    you are welcome @highschoolmom2010

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