Answer
$28.0\ m$
Work Step by Step
Use the figure, we have $a=40.6\ m, B=34.6^\circ$, thus $b=a\ tanB=40.6\ tan34.6^\circ\approx28.0\ m$
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 548: 45
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