## Elementary Technical Mathematics

Published by Brooks Cole

# Chapter 13 - Section 13.1 - Trigonometric Ratios - Exercise - Page 454: 12

65.0

#### Work Step by Step

Using the Pythagorean Theorem, we can plug in our variable and then solve: $${a}^2+{b}^2 = {c}^2$$ $${25.0}^2+{60.0}^2 = {c}^2$$ Rearranging gives: $${c} = \sqrt{{25}^2+{60}^2}$$ The answer, to 3 significant digits is $$c= 65.0$$

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