Trigonometry (10th Edition)

Published by Pearson
ISBN 10: 0321671775
ISBN 13: 978-0-32167-177-6

Chapter 7 - Applications of Trigonometry and Vectors - Section 7.3 The Law of Cosines - 7.3 Exercises - Page 313: 1a

Answer

SAS

Work Step by Step

Lowercase letters represent sides of the triangle while uppercase letters represent angles of the triangle. Since a,b and C are given, this means that two sides and one angle is given. In addition, the angle C is the included angle as it is between a and b. Therefore, it is clear that SAS is given since SAS refers to side-angle-side where the given angle is between the two given sides.
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