Elementary Geometry for College Students (6th Edition)

Published by Brooks Cole
ISBN 10: 9781285195698
ISBN 13: 978-1-28519-569-8

Chapter 11 - Section 11.3 - The Tangent Ratio and Other Ratios - Exercises - Page 512: 41


The angle of elevation is $72^{\circ}$

Work Step by Step

Let $\theta$ be the angle of elevation. We can find $\theta$: $cos ~\theta = \frac{10~ft}{32~ft}$ $\theta = cos^{-1}~(\frac{10~ft}{32~ft})$ $\theta = 72^{\circ}$ The angle of elevation is $72^{\circ}$
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