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

Published by Cengage

# Chapter 5 - Review Exercises - Page 275: 42g

Obtuse

#### Work Step by Step

8$^2$+9$^2$=13$^2$ 145$\lt$169 If a$^2$+b$^2$$\lt$c$^2$ then it is an obtuse triangle.

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