Answer
$1.5\ rad.$
Work Step by Step
The arc length is given by $s=r\cdot\theta$ where $r$ is the radius, $theta$ is the central angle in radian. We have $450=300\theta$, thus $\theta=\frac{450}{300}=1.5\ rad.$
Precalculus (6th Edition)
by Lial, Margaret L.; Hornsby, John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
013421742X
ISBN 13:
978-0-13421-742-0
Chapter 6 - The Circular Functions and Their Graphs - Quiz - Page 616: 3
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