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Lukecrayonz

  • 4 years ago

Drawing problem, lost on what to do.

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  1. Lukecrayonz
    • 4 years ago
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    |dw:1327989668302:dw|

  2. Lukecrayonz
    • 4 years ago
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    |dw:1327989777153:dw|

  3. Directrix
    • 4 years ago
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    What is the question that goes with this diagram?

  4. Lukecrayonz
    • 4 years ago
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    Just solve for x, c, and d.

  5. Directrix
    • 4 years ago
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    Is the quadrilateral a parallelogram? Check the instructions.

  6. Lukecrayonz
    • 4 years ago
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    http://screensnapr.com/v/NUKOFy.png #12

  7. Lukecrayonz
    • 4 years ago
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    So yes :P

  8. anonymous
    • 4 years ago
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    a bunch of sine and cosine laws would work

  9. anonymous
    • 4 years ago
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    not sure if there's a faster approach though

  10. Lukecrayonz
    • 4 years ago
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    The section is law of cosines; im going to assume you only use that.

  11. anonymous
    • 4 years ago
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    you could solve for the angle between 35 and d

  12. Lukecrayonz
    • 4 years ago
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    how?;o

  13. anonymous
    • 4 years ago
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    c^2=a^2+b^2-2abcosC

  14. anonymous
    • 4 years ago
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    a=35, b=52, c=25 , solve for C

  15. Directrix
    • 4 years ago
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    Angle theta is 60 because consecutive angles of a parallelogram are supplementary.

  16. anonymous
    • 4 years ago
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    nvm

  17. Lukecrayonz
    • 4 years ago
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    pizza, http://screensnapr.com/v/HgOxrg.png

  18. anonymous
    • 4 years ago
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    |dw:1327990671262:dw|

  19. Lukecrayonz
    • 4 years ago
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    Oh wow, the x was right infront of us the whole time!

  20. anonymous
    • 4 years ago
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    |dw:1327990778975:dw|

  21. anonymous
    • 4 years ago
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    solve for alpha and you should be about to get the rest

  22. sasogeek
    • 4 years ago
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    c and d are the full lengths of the diagonals... right?

  23. anonymous
    • 4 years ago
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    no its only half

  24. Lukecrayonz
    • 4 years ago
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    wouldnt it just be 26?

  25. anonymous
    • 4 years ago
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    your angle is wrong though, the 120 should be a 60

  26. anonymous
    • 4 years ago
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    ignore the drawings, have no idea what i was thinking

  27. anonymous
    • 4 years ago
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    but i got it now

  28. anonymous
    • 4 years ago
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    (2d)^2=25^2+35^2-2(25)(35)cos60 (2c)^2=25^2+35^2-2(25)(35)cos120

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