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aussy123 Group Title

Given: a = 8, b = 6, Angle C = 60 Angle A = 14° 46° 74° 106°

  • one year ago
  • one year ago

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  1. phi Group Title
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    we could use the law of cosines to find side c, and then the law of sines to find angle A

    • one year ago
  2. begzat Group Title
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    i The only angle you are given is C, so use c^2 = a^2 + b^2 - 2abcosC...now substitute

    • one year ago
  3. aussy123 Group Title
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    Would you use the formula a^2=b^2+c^2-2bcCosA

    • one year ago
  4. begzat Group Title
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    yes

    • one year ago
  5. aussy123 Group Title
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    okay thanks ill try

    • one year ago
  6. begzat Group Title
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    okay

    • one year ago
  7. phi Group Title
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    This is a 2 step problem. find side c using \[ c^2 = a^2 + b^2 - 2\ a\ b \cos(C) \] after you find c, you can use the Law of Sines \[ \frac{\sin A}{a}= \frac{\sin C}{c} \]

    • one year ago
  8. aussy123 Group Title
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    okay thanks

    • one year ago
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