Trigonometry (10th Edition)

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

Chapter 1 - Trigonometric Functions - Section 1.2 Angle Relationships and Similar Triangles - 1.2 Exercises: 15



Work Step by Step

1. Interior angles of triangle add up to 180 degrees $x+52^{\circ}+37^{\circ}=180^{\circ}$ 2. Solve for x to find the angle $x=180^{\circ}-37^{\circ}-52^{\circ}$ $x=91^{\circ}$
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