Answer
$2.11$ radians
Work Step by Step
First convert the angle to decimal degrees:
$120^{\circ}40'=120^{\circ}+(\frac{40}{60})^{\circ}=120.67^{\circ}$.
Now convert to radians:
$120.67^{\circ}=120.67(\frac{\pi}{180})\approx2.11$ radians.
Trigonometry 7th Edition
by McKeague, Charles P.; Turner, Mark D.
Published by
Cengage Learning
ISBN 10:
1111826854
ISBN 13:
978-1-11182-685-7
Chapter 3 - Section 3.2 - Radians and Degrees - 3.2 Problem Set - Page 131: 21
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