Precalculus (6th Edition)

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: 44

Answer

$134.7\ cm$

Work Step by Step

Draw a vertical line from top as shown in the figure, half of the top angle is $\frac{68^\circ44'}{2}=34^\circ22'$, we have $tan(34^\circ22')=\frac{184.2/2}{x}$, thus $x=\frac{92.1}{tan(34^\circ22')}\approx134.7\ cm$
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