Answer
90° and 90°
Work Step by Step
9x + 9x = 180 $^{\circ}$
18x =180 $^{\circ}$
x = 10$^{\circ}$
9$\times$ 10 = 90$^{\circ}$
Trigonometry (10th Edition)
by Lial, Margaret L.; Hornsby, John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
0321671775
ISBN 13:
978-0-32167-177-6
Chapter 1 - Trigonometric Functions - Section 1.1 Angles - 1.1 Exercises - Page 7: 18
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