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phi
 one year ago
Best ResponseYou've already chosen the best response.1we could use the law of cosines to find side c, and then the law of sines to find angle A

begzat
 one year ago
Best ResponseYou've already chosen the best response.0i The only angle you are given is C, so use c^2 = a^2 + b^2  2abcosC...now substitute

aussy123
 one year ago
Best ResponseYou've already chosen the best response.0Would you use the formula a^2=b^2+c^22bcCosA

phi
 one year ago
Best ResponseYou've already chosen the best response.1This 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 \[ \frac{\sin A}{a}= \frac{\sin C}{c} \]
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