Trigonometry (10th Edition)

Published by Pearson
ISBN 10: 0321671775
ISBN 13: 978-0-32167-177-6

Chapter 1 - Trigonometric Functions - Section 1.1 Angles - 1.1 Exercises: 18

Answer

90° and 90°

Work Step by Step

9x + 9x = 180 $^{\circ}$ 18x =180 $^{\circ}$ x = 10$^{\circ}$ 9$\times$ 10 = 90$^{\circ}$
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