Answer
$s=48.17~inches$
Work Step by Step
$138°=138°(\frac{\pi~rad}{180°})=\frac{23\pi}{30}~rad$
$s=rθ$
$s=20·\frac{23\pi}{30}=\frac{46\pi}{3}=48.17~inches$
Algebra and Trigonometry 10th Edition
by Larson, Ron
Published by
Cengage Learning
ISBN 10:
9781337271172
ISBN 13:
978-1-33727-117-2
Chapter 6 - Review Exercises - Page 500: 27
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