Geometry: Common Core (15th Edition)

by Charles, Randall I.

Published by Prentice Hall

ISBN 10: 0133281159

ISBN 13: 978-0-13328-115-6

Chapter 2 - Reasoning and Proof - 2-1 Patterns and Inductive Reasoning - Practice and Problem-Solving Exercises - Page 86: 33

Answer

90$^{\circ}$ + 90$^{\circ}$ = 180$^{\circ}$

Work Step by Step

acute angles are anything below 90$^{\circ}$ but sense 90$^{\circ}$ is a right angle it is not an a acute angle 90 + 90 = 180.

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