Elementary Geometry for College Students (5th Edition)

Published by Brooks Cole
ISBN 10: 1439047901
ISBN 13: 978-1-43904-790-3

Chapter 5 - Review Exercises - Page 275: 42c

Answer

Obtuse

Work Step by Step

9$^2$+15$^2$=18$^2$ 306$\lt$324 If a$^2$+b$^2$$\lt$c$^2$ then it is obtuse.
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