Algebra 2 (1st Edition)

Published by McDougal Littell
ISBN 10: 0618595414
ISBN 13: 978-0-61859-541-9

Chapter 13, Trigonometric Ratios and Functions - 13.6 Apply the Law of Cosines - 13.6 Exercises - Skill Practice - Page 892: 7

Answer

Law of sines

Work Step by Step

If we are given two angles, we can easily find the measure of the third angle. Since we are given one side length of a triangle, we can directly find the second and third by using the law of sines. Therefore, in this case, we should use "law of sines".
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