fionaglenanne225 fionaglenanne225
  • 09-08-2021
  • Mathematics
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HELP! TRIGONOMETRY QUESTION!!

HELP TRIGONOMETRY QUESTION class=

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LammettHash
LammettHash LammettHash
  • 09-08-2021

Use the law of cosines, which says

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

==>   cos(∠P) = 25,633/52,890

==>   ∠P ≈ 61.06°

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