Thinking Mathematically (6th Edition)

Published by Pearson
ISBN 10: 0321867327
ISBN 13: 978-0-32186-732-2

Chapter 10 - Geometry - 10.6 Right Triangle Trigonometry - Concept and Vocabulary Check - Page 664: 2


cosine; adjacent to; hypotenuse; $\frac{b}{c}$

Work Step by Step

$cos A$, which represents the cosine of angle A is defined by the length of the side adjacent to angle A divided by the length of the hypotenuse. This is represented by $\frac{b}{c}$ in the figure shown.
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