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Find angle C

3. Law of sines and cosine

Find angle C 3. Law of sines and cosine-example-1
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User Anler
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1 Answer

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Explanation:

Law of cosines c^2 = a^2 + b^2 - 2ab cos Φ

For this problem:

28^2 = 18^2 + 12^2 - 2(18)(12) cos C <======solve for angle C

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User Naspinski
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