Mathematics
Mathematics, 04.03.2021 21:20, Talber1

Triangle P N M is shown. The length of P N is 7, the length of N M is 8, and the length of M P is 11. Law of cosines: a2 = b2 + c2 – 2bccos(A)

Which equation correctly applies the law of cosines to solve for an unknown angle measure?

72 = 82 + 112 – 2(8)(11)cos(N)
82 = 72 + 112 – 2(7)(11)cos(M)
72 = 82 + 112 – 2(8)(11)cos(P)
82 = 72 + 112 – 2(7)(11)cos(P)

answer
Answers: 3

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Triangle P N M is shown. The length of P N is 7, the length of N M is 8, and the length of M P is 11...

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