Trigonometry (11th Edition) Clone

Published by Pearson
ISBN 10: 978-0-13-421743-7
ISBN 13: 978-0-13421-743-7

Chapter 3 - Radian Measure and the Unit Circle - Section 3.1 Radian Measure - 3.1 Exercises - Page 104: 13

Answer

$\frac{\pi}{2}radians$

Work Step by Step

In order to convert degree measures to radians, we must multiply the given degree measure by $\frac{\pi}{180}$ and simplify. $90^{\circ}=90\times(\frac{\pi}{180}radians)=\frac{90\pi}{180}radians=\frac{\pi}{2}radians$
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