Answer
$19.2°$
Work Step by Step
Two angles are complementary if the sum of their measures is 90°.
The complement of a 70.8° angle is an angle whose measure is $90° - 70.8° = 19.2°$
To check, notice that $70.8° + 19.2° = 90°$.
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: 3
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