Precalculus (10th Edition)

Published by Pearson
ISBN 10: 0-32197-907-9
ISBN 13: 978-0-32197-907-0

Chapter 6 - Trigonometric Functions - 6.1 Angles and Their Measure - 6.1 Assess Your Understanding - Page 361: 5

Answer

radian

Work Step by Step

If in a circle with a radius of $r$, there is an arc length of $r$, then the central angle is $1$ radian.
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