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

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asked Dec 1, 2018 133k views

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Theedchen · Answer 1 · 2018-12-03T02:37:23+0000

Answer:

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

82 = 72 + 112 – 2(7)(11)cos(P) aka D

Explanation:

I got this right on edg for Geometry 1C-2 :p

Mattacular · Answer 2 · 2018-12-07T20:30:57+0000

The law of cosines is:
c² = a² + b² - 2abCos(C)
Therefore, in order to apply this law, we must know the value of two adjacent sides, represented by a and b here, and the value of their subtended angle, represented by C.

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

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