Answer
$$-120^\circ$$
Work Step by Step
Multiply by $\dfrac{180^\circ}{\pi\space \text{radians}}$:
$$-\dfrac{2\pi}{3}\space \text{radians}\times\frac{180^\circ}{\pi\space \text{radians}}= -120^\circ$$
Algebra 2 Common Core
by Hall, Prentice
Published by
Prentice Hall
ISBN 10:
0133186024
ISBN 13:
978-0-13318-602-4
Chapter 13 - Periodic Functions and Trigonometry - 13-3 Radian Measure - Practice and Problem-Solving Exercises - Page 848: 14
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