Answer
179$^{\circ}$19'
Work Step by Step
1. Add degrees to degrees and minutes to minutes
97$^{\circ}$+81$^{\circ}$= 178$^{\circ}$
42'+37'=79'
2. Redistribute minutes to hours. 178$^{\circ}$79' to 179$^{\circ}$19'
Trigonometry (10th Edition)
by Lial, Margaret L.; Hornsby, John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
0321671775
ISBN 13:
978-0-32167-177-6
Chapter 1 - Trigonometric Functions - Section 1.1 Angles - 1.1 Exercises - Page 8: 37
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