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HELP! TRIGONOMETRY QUESTION!!
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HELP! TRIGONOMETRY QUESTION!!

HELP! TRIGONOMETRY QUESTION!!-example-1
User Muffinista
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1 Answer

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Use the law of cosines, which says

189² = 215² + 123² - 2×215×123 cos(∠P)

==> cos(∠P) = 25,633/52,890

==> ∠P ≈ 61.06°

User Harold Castillo
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