Answer
$\frac{4\pi}{3} \ rad\approx 4.19~rad$
Work Step by Step
To change to radians, we have
$$
240^{\circ}=240\times \frac{\pi}{180} \ rad=\frac{4\pi}{3} \ rad\approx 4.19~rad
.$$
Elementary Technical Mathematics
by Nelson, Robert; Eren, Dale;
Published by
Brooks Cole
ISBN 10:
1285199197
ISBN 13:
978-1-28519-919-1
Chapter 12 - Test - Page 446: 8
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