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Just check my answer please :) Image of the triangle below. I'm supposed to find the missing angle measure using the Law of cosine. For my answer I got 16.1608. Much appreciated!
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http://www.wolframalpha.com/input/?i=solve+x%5E2+%3D+21.5%5E2+%2B+30.2%5E2+-+2*21.5*30.2*cos%2831%29
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Yay! Thanks again :)
np... u wlc :)
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