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anonymous

  • one year ago

help and i will give a medal In ΔABC, if the lengths of sides a and c are 8 centimeters and 16 centimeters, respectively, and the measure of ∠C is 35°, what is the measure of ∠A to two decimal places? a.16.67° b.17.50° c.26.57° d.35.53

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  1. TrojanPoem
    • one year ago
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    |dw:1434979888494:dw|

  2. anonymous
    • one year ago
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    what forula should i use sine or cosine

  3. anonymous
    • one year ago
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    forula*

  4. anonymous
    • one year ago
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    formula*

  5. TrojanPoem
    • one year ago
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    \[\frac{ a }{ \sin a } = \frac{ c }{ \sin c }\] \[\sin a = \frac{ a \sin c }{ c } = \frac{ 8 \times \sin 35 }{ 16 } \approx 0.287\] \[\sin^{-1} a = 16, 39\]

  6. anonymous
    • one year ago
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    so the answer would be 16.67

  7. TrojanPoem
    • one year ago
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    Sine will be easier although no thing is restricting you from using the cosine

  8. TrojanPoem
    • one year ago
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    yea, approximately.

  9. anonymous
    • one year ago
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    okay thank you there's your medal

  10. TrojanPoem
    • one year ago
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    No problem.

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