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anonymous

  • one year ago

~Will give medal to the person who helps ~ Given ABC find the values of x and y. In your final answer, include all of your calculations. ~(picture will be below)~

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  1. anonymous
    • one year ago
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    |dw:1438394980022:dw|

  2. anonymous
    • one year ago
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    this might look a lot better than what I drew ~

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  3. anonymous
    • one year ago
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    this might look a lot better than what I drew ~

  4. anonymous
    • one year ago
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    Is that all the information they give you?

  5. anonymous
    • one year ago
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    yea ~ I put up the actual picture to make sure you see the clear model ~.

  6. anonymous
    • one year ago
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    I get confused with this, when the shapes do not have all the info. sine and tan i get all confused

  7. anonymous
    • one year ago
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    Ok, so we know that both triangles are similar

  8. anonymous
    • one year ago
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    I would assume that 6/(x-9) = x/6

  9. anonymous
    • one year ago
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    use sine rule

  10. anonymous
    • one year ago
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    alright sine , but im always confused on which numbers or variables to use

  11. anonymous
    • one year ago
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    summon SOHCAHTOA !

  12. anonymous
    • one year ago
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    Sin = opp/hyp Cos = adj/hyp Tan = opp/adj

  13. anonymous
    • one year ago
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    opposite and hypotenuse ~~~ alright

  14. anonymous
    • one year ago
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    sine rule = sin(A)/a = sin(B)/b = sin(C)/c 1st triangle we have sin(90)/9= 2nd triangle we have sin(90)/6=

  15. anonymous
    • one year ago
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    so we use the angle that is at A ?? it said shape ABC and find X and y

  16. anonymous
    • one year ago
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    i just started this chapter, so its all new to me still

  17. anonymous
    • one year ago
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    i started the stuff for ya by putting sin(90)/9

  18. anonymous
    • one year ago
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    |dw:1438396237922:dw|

  19. anonymous
    • one year ago
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    |dw:1438396318981:dw|

  20. anonymous
    • one year ago
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    you use the 90 degrees the whole time right ?? just making sure. I thought you would have to use the other angle

  21. anonymous
    • one year ago
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    it can change depends on situation

  22. anonymous
    • one year ago
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    well we have to find x and y , so whats the situation call for ?

  23. anonymous
    • one year ago
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    alright, I just want to know how to tell which angle to use, I thought i would have to use the other one since it can reach both x and y but I guess im wrong. Im just super confused

  24. anonymous
    • one year ago
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    wait lemme redraw your question to show it to you better

  25. anonymous
    • one year ago
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    alright,

  26. anonymous
    • one year ago
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    |dw:1438396632826:dw|

  27. anonymous
    • one year ago
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    |dw:1438396694436:dw|

  28. anonymous
    • one year ago
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    what type of triangle is this ?? 30 60 90 ?

  29. anonymous
    • one year ago
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    idk but dont assume

  30. anonymous
    • one year ago
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    alright ~

  31. anonymous
    • one year ago
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    did you take both shapes from the original model for the question ?

  32. anonymous
    • one year ago
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    yea i split them out

  33. anonymous
    • one year ago
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    so you can see all the triangles

  34. anonymous
    • one year ago
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    ohh alright ~

  35. anonymous
    • one year ago
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    which one ??

  36. anonymous
    • one year ago
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    if thats the case this is easy

  37. anonymous
    • one year ago
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    but its not

  38. anonymous
    • one year ago
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    which one ?? im confused

  39. anonymous
    • one year ago
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    idk i just put in the numbers, the largest triangle isnt 45/45/90

  40. anonymous
    • one year ago
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    oh so the one with the 6 ~

  41. anonymous
    • one year ago
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    or the lonesome 6 i mean

  42. anonymous
    • one year ago
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    you can try that

  43. anonymous
    • one year ago
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    ok ? try what ?? the sine equation ?? on which numbers ?

  44. anonymous
    • one year ago
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    i vaguely remember 45 45 90 ~

  45. anonymous
    • one year ago
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    for 45/45/90 the its 6^2+6^2 = ??? (Pythagoras theorem)

  46. anonymous
    • one year ago
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    24 ?? ~

  47. anonymous
    • one year ago
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    8.4

  48. anonymous
    • one year ago
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    wait I got it wrong or did you round it down ?? The ^ did the mean multiply or ?

  49. anonymous
    • one year ago
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    \[\sqrt{6^2+6^2}=8.48528\]

  50. anonymous
    • one year ago
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    ohhh ~ should have put that earlier, I thought you meant multiply

  51. anonymous
    • one year ago
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    so the adjacent side is 8.4 ?

  52. anonymous
    • one year ago
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    hypotenuse

  53. anonymous
    • one year ago
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    for a 45/45/90 triangle, length of opposite=length of adjacent

  54. anonymous
    • one year ago
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    i thought the hypotenuse was 6 already. ~ we are focusing on the smaller shape right??

  55. anonymous
    • one year ago
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    Then its like this\[6^2 = 2a^2\]

  56. anonymous
    • one year ago
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    |dw:1438398529080:dw| are we doing this shape ? you confused me soo much.

  57. anonymous
    • one year ago
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    yea

  58. anonymous
    • one year ago
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    you should get 4.24

  59. anonymous
    • one year ago
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    but he hypotenuse is 6 already,

  60. anonymous
    • one year ago
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    lol guess i look at the wrong stuff earler

  61. anonymous
    • one year ago
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    ohh hahah ~ i do that to~

  62. anonymous
    • one year ago
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    you see the placement of that lone 6 triangle, the adjacent + 9 is x

  63. anonymous
    • one year ago
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    so x = 4.24+9

  64. anonymous
    • one year ago
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    wait where did the 9 come from ?? the original one had only 6 the one I first posted

  65. anonymous
    • one year ago
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    now you look at the big one

  66. anonymous
    • one year ago
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    the original figure

  67. anonymous
    • one year ago
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    but we never found the adjacent side ?? what was it ? and can you show me the step by step equation till you got the answer so im not as confused you keep appearing with answers

  68. anonymous
    • one year ago
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    ands its confusing me

  69. anonymous
    • one year ago
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    \[6^2=2a^2\]\[36=2a^2\]\[18=a^2\]\[\sqrt{18}=a\]\[a=\sqrt{18}=4.2426\]

  70. anonymous
    • one year ago
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    .... i have never seen 2a^2 ever mentioned in a problem

  71. anonymous
    • one year ago
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    |dw:1438399124678:dw|you know pythagoras is \[a^2+b^2=c^2\]for a 45/45/90 triangle a=b

  72. anonymous
    • one year ago
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    yea I have seen that , soo the side oppisite of 6 on the smaller shape is 4.2 ?? i would add that to 9 to get x since x is the line BC~

  73. anonymous
    • one year ago
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    yea

  74. anonymous
    • one year ago
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    13.2 ~ ?

  75. anonymous
    • one year ago
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    yup

  76. anonymous
    • one year ago
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    now use pythagoras to find y

  77. anonymous
    • one year ago
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    ok then ~~ can you piece the equation together so i can try to work it out

  78. anonymous
    • one year ago
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    \[c^2-a^2=b^2\]\[13.24^2-6^2=y^2\]

  79. anonymous
    • one year ago
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    6 ?? i thought it was a 9 ??

  80. anonymous
    • one year ago
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    |dw:1438399694247:dw|

  81. anonymous
    • one year ago
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    |dw:1438399695601:dw|

  82. anonymous
    • one year ago
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    so the opposite side of 6 is = ?

  83. anonymous
    • one year ago
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    use the stuff i show you earlier

  84. anonymous
    • one year ago
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    the theorom ? yeaa i know how to solve that , but iM just saying where did the 6 . the side was never defined and the 9 was suppose to be in here i thought

  85. anonymous
    • one year ago
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    if you look at the big triangle you see the 6 is at the bottom

  86. anonymous
    • one year ago
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    and the x is the whole line segment, since you split it up you would have to use the nine i thought.

  87. anonymous
    • one year ago
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    you mean abc?? without the diagonal cutting it off in the middle ?

  88. anonymous
    • one year ago
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    yea

  89. anonymous
    • one year ago
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    oh ! should have said that this whole time i thought you took two shapes cut off by the diagonal since they make two different shapes.

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