Algebra and Trigonometry 10th Edition

Published by Cengage Learning
ISBN 10: 9781337271172
ISBN 13: 978-1-33727-117-2

Chapter 6 - Review Exercises - Page 500: 27



Work Step by Step

$138°=138°(\frac{\pi~rad}{180°})=\frac{23\pi}{30}~rad$ $s=rθ$ $s=20·\frac{23\pi}{30}=\frac{46\pi}{3}=48.17~inches$
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