Answer
$63.39^\circ$
Work Step by Step
Use the figure, we have $b=55.20\ ft, a=27.65\ ft$, thus $B=atan(\frac{55.20}{27.65})\approx63.39^\circ$
Precalculus (6th Edition)
by Lial, Margaret L.; Hornsby, John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
013421742X
ISBN 13:
978-0-13421-742-0
Chapter 5 - Trigonometric Functions - 5.4 Solutions and Applications off Right Triangles - 5.4 Exercises - Page 549: 52
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