Trigonometry (11th Edition) Clone

Published by Pearson
ISBN 10: 978-0-13-421743-7
ISBN 13: 978-0-13421-743-7

Chapter 2 - Acute Angles and Right Triangles - Section 2.4 Solving Right Triangles - 2.4 Exercises - Page 79: 44


$\angle CAB \ne \angle BAD$

Work Step by Step

Angle of depression is $\angle BAD$ and $AD||CB$ then, $\angle CAD = 180^{\circ} -\angle ACB = 90^{\circ}$ $\angle CAD = \angle BAD + \angle CAB$ $\angle CAB = \angle CAD - \angle BAD $ $\angle CAB = 90^{\circ} - angle$ $ of$ $ depression$ therefore $\angle CAB \ne \angle BAD$
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