Trigonometry 7th Edition

Published by Cengage Learning
ISBN 10: 1111826854
ISBN 13: 978-1-11182-685-7

Chapter 2 - Section 2.4 - Applications - 2.4 Problem Set - Page 93: 20



Work Step by Step

Let $\theta$ be the angle between the ladder and the wall. Then, $\tan\theta=\frac{opposite\,side}{adjacent\,side}=\frac{4.5\,ft}{7.0\,ft}=0.64$ $\theta=\tan^{-1}(0.64)=33^{\circ}$
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