Elementary Geometry for College Students (5th Edition)

Published by Brooks Cole
ISBN 10: 1439047901
ISBN 13: 978-1-43904-790-3

Chapter 11 - Section 11.2 - The Cosine Ratio and Applications - Exercises: 21


$c\approx19.1$ in. $d\approx14.8$ in.

Work Step by Step

$\cos51=\frac{12}{c}$ $c=\frac{12}{\cos51}$ $c\approx19.1$ $\sin51=\frac{d}{c}$ $\sin51\approx\frac{d}{19.1}$ $19.1\times\sin51\approx d$ $d\approx14.8$
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