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8 April, 06:07

How do you use the law of cosines or law of sines if you are given a=13 m, b=8.5 m, and c=9 m?

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  1. 8 April, 06:09
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    The law of cosines is

    c = square root of a^2 + b^2 - 2ab cos c

    the law of sines is

    a = b (sin a / sin b)
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