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Decart
 one year ago
Best ResponseYou've already chosen the best response.0cosine of B divided by sine b = cosine of A divided by sidea

Directrix
 one year ago
Best ResponseYou've already chosen the best response.1Try the Law of Sines. dw:1384735024017:dw

Directrix
 one year ago
Best ResponseYou've already chosen the best response.1sin(57 °) / 9 = sin(56 °) / a @whadduptori Solve for a. Get the measure of <C from the theorem that the sum of the interior angles of a triangle is 180. Then, use the Law of Sines again to get side AB.
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