Geometry: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281159
ISBN 13: 978-0-13328-115-6

Chapter 1 - Tools of Geometry - Chapter Review - Page 72: 16


The angle is acute.

Work Step by Step

An acute angle is any angle that is less than $90°$. This means that the two rays that form the angle must be narrower than a right angle. Since this angle fits that description, it is acute.
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