Algebra and Trigonometry 10th Edition

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

Chapter 6 - 6.1 - Angles and Their Measure - 6.1 Exercises - Page 431: 59


(a) $30°=\frac{\pi}{6}rad$ (b) $45°=\frac{\pi}{4}rad$

Work Step by Step

$\pi~rad=180°$ $\frac{\pi~rad}{180°}=1$ (a) $30°=30°(\frac{\pi~rad}{180°})=\frac{30°(\pi~rad)}{180°}=\frac{\pi}{6}rad$ (b) $45°=45°(\frac{\pi~rad}{180°})=\frac{45°(\pi~rad)}{180°}=\frac{\pi}{4}rad$
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