Answer
149.8°
Work Step by Step
Two angles are Supplementary if the sum of their measures is 180°.
The supplement of a $30.2°$ angle is an angle whose measure is $180°-30.2° = 149.8° $
To check, notice that $30.2° + 149.8°= 180°$.
Algebra: A Combined Approach (4th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321726391
ISBN 13:
978-0-32172-639-1
Appendix F - Exercise Set - Page 1012: 9
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