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highschoolmom2010 Group Title

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

  • 11 months ago
  • 11 months ago

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  1. highschoolmom2010 Group Title
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    @jdoe0001

    • 11 months ago
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  2. jdoe0001 Group Title
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    hehe, same thing you see the 30, 60 and 90 angles?

    • 11 months ago
  3. highschoolmom2010 Group Title
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    yes

    • 11 months ago
  4. highschoolmom2010 Group Title
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    |dw:1375657637657:dw|

    • 11 months ago
  5. jdoe0001 Group Title
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    so their relationship are |dw:1375657891270:dw|

    • 11 months ago
  6. highschoolmom2010 Group Title
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    that is where i started getting confused....

    • 11 months ago
  7. jdoe0001 Group Title
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    ok, which part throws you off?

    • 11 months ago
  8. highschoolmom2010 Group Title
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    |dw:1375657762568:dw|

    • 11 months ago
  9. highschoolmom2010 Group Title
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    ^^that

    • 11 months ago
  10. jdoe0001 Group Title
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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 months ago
  11. jdoe0001 Group Title
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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

    • 11 months ago
  12. jdoe0001 Group Title
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    still confused?

    • 11 months ago
  13. highschoolmom2010 Group Title
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    not on the 2a part but what about the a sqrt3

    • 11 months ago
  14. ienarancillo Group Title
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    you just have to multipy the 20 with the sqrt of 3.

    • 11 months ago
  15. ienarancillo Group Title
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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.

    • 11 months ago
  16. ienarancillo Group Title
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    do u get it? :)

    • 11 months ago
  17. phi Group Title
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    btw, this video goes over 45-45-90 and 30-60-90 triangles. These videos are helpful

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

    • 11 months ago
  19. phi Group Title
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    this one http://www.khanacademy.org/math/geometry/right_triangles_topic/special_right_triangles/v/intro-to-30-60-90-triangles

    • 11 months ago
  20. highschoolmom2010 Group Title
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    oh ok ill watch it

    • 11 months ago
  21. Krishnadas Group Title
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    @highschoolmom2010 got the answer?

    • 11 months ago
  22. highschoolmom2010 Group Title
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    nope not even close

    • 11 months ago
  23. Krishnadas Group Title
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    ok...you want to find x and y..right?

    • 11 months ago
  24. Krishnadas Group Title
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    You know about trigonometry ratios?

    • 11 months ago
  25. highschoolmom2010 Group Title
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    yea.. i tried to do it and was told it was wrong so i got confused nope im in geometry

    • 11 months ago
  26. highschoolmom2010 Group Title
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    @phi it kinda helped me figure that sqrt 3 part bu tnot how to do the problem

    • 11 months ago
  27. Krishnadas Group Title
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    |dw:1375807850273:dw|

    • 11 months ago
  28. phi Group Title
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    in that case watch the video where he does examples

    • 11 months ago
  29. Krishnadas Group Title
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    or we can go using geometry

    • 11 months ago
  30. highschoolmom2010 Group Title
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    that would help better

    • 11 months ago
  31. Krishnadas Group Title
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    ok

    • 11 months ago
  32. Krishnadas Group Title
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    this is a 30-60-90 triangle

    • 11 months ago
  33. Krishnadas Group Title
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    |dw:1375808252038:dw|

    • 11 months ago
  34. Krishnadas Group Title
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    this means BC is AB*root 3

    • 11 months ago
  35. Krishnadas Group Title
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    and AC is AB*2

    • 11 months ago
  36. Krishnadas Group Title
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    okay?

    • 11 months ago
  37. highschoolmom2010 Group Title
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    ok

    • 11 months ago
  38. Krishnadas Group Title
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    so BC=root3 *(x) =y

    • 11 months ago
  39. Krishnadas Group Title
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    and AC=x(*2)=40

    • 11 months ago
  40. highschoolmom2010 Group Title
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    can u draw what u are saying im *more visual*

    • 11 months ago
  41. Krishnadas Group Title
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    |dw:1375808671220:dw|

    • 11 months ago
  42. Krishnadas Group Title
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    from this x=20 and put that x to find y

    • 11 months ago
  43. highschoolmom2010 Group Title
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    |dw:1375808797534:dw|

    • 11 months ago
  44. Krishnadas Group Title
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    yes

    • 11 months ago
  45. highschoolmom2010 Group Title
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    like that ????

    • 11 months ago
  46. Krishnadas Group Title
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    yes...you got it

    • 11 months ago
  47. highschoolmom2010 Group Title
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    so so what now....

    • 11 months ago
  48. Krishnadas Group Title
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    x=20 and y=20 root3

    • 11 months ago
  49. highschoolmom2010 Group Title
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    HOLY COW I DID IT :DDDDD

    • 11 months ago
  50. Krishnadas Group Title
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    hmm...Congrats....:D

    • 11 months ago
  51. highschoolmom2010 Group Title
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    TY @Krishnadas & @phi @jdoe0001

    • 11 months ago
  52. Krishnadas Group Title
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    you are welcome @highschoolmom2010

    • 11 months ago
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