Answer
80 degrees
Work Step by Step
We know that there are 180 degrees per pi radians. Thus, we find:
$$=\frac{4\pi}{9} \ radians \times \frac{180^{\circ}}{\pi\ radians}=80^{\circ}$$
Algebra 2 (1st Edition)
by Larson, Ron; Boswell, Laurie; Kanold, Timothy D.; Stiff, Lee
Published by
McDougal Littell
ISBN 10:
0618595414
ISBN 13:
978-0-61859-541-9
Chapter 13, Trigonometric Ratios and Functions - 13.2 Define General Angles and Use Radian Measure - 13.2 Exercises - Quiz for Lessons 13.1 and 13.2 - Page 865: 9
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