Please help me with trigonometry and law of sines I’m being timed and really need the help

asked Dec 16, 2022 162k views

17 votes

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8 votes

Explanation:

cosA = AC² + BC²- AB² / 2 • AC • BC

cos A = 13.5²+23.9²-12.7²/2• 13.5 • 23.9

Tryx answered Dec 20, 2022

by Tryx

4.1k points

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