Trigonometry 7th Edition

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

Chapter 3 - Section 3.1 - Reference Angle - 3.1 Problem Set - Page 123: 95

Answer

(a). $27^{\circ}$

Work Step by Step

Terminal side of $153^{\circ}$ lies in QII, Therefore Reference angle of $153^{\circ}$ = $180^{\circ} - 153^{\circ}$ = $27^{\circ}$
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