## Elementary Geometry for College Students (7th Edition) Clone

Published by Cengage

# Chapter 11 - Section 11.2 - The Cosine Ratio and Applications - Exercises - Page 511: 1

#### Answer

cos α = $\frac{12}{13}$ = 0.92 cos β = $\frac{5}{13}$ = 0.38

#### Work Step by Step

cos α = $\frac{length of adjacent}{length of hypotenuse}$ cos α = $\frac{12}{13}$ = 0.92 Similarly cos β = $\frac{length of adjacent}{length of hypotenuse}$ = $\frac{5}{13}$ = 0.38

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