Chapter 11.2, Problem 26E

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7th Edition

Alexander + 2 others

ISBN: 9781337614085

Textbook Problem

*In Exercise 23 to 28, use either the sine ratio or the cosine ratio as needed to find the measure of each indicated angle to the nearest degree.*

To determine

**To find:**

The measure of each indicated angle of the following triangle,

Explanation

Consider the following figure,

General formula for cosine ratio and sin ratio is given below,

From the given figure the value 5 is the hypotenuse value since it is opposite to right angle.

Then

Therefore,

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