## Algebra 2 (1st Edition)

Published by McDougal Littell

# Chapter 13, Trigonometric Ratios and Functions - Prerequisite Skills - Page 850: 5

#### Answer

$b=6$

#### Work Step by Step

By the Pythagorean Theorem, we know that $a^2+b^2=c^2$, Plugging in our variables gives, $2.5^2+b^2=6.5^2$, or $b^2=36$ or $b=6$

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