Basic College Mathematics (9th Edition)

Published by Pearson
ISBN 10: 0321825535
ISBN 13: 978-0-32182-553-7

Chapter 8 - Geometry - 8.1 Basic Geometric Terms - 8.1 Exercises - Page 540: 19


$\angle$AOB is a Right Angle.

Work Step by Step

To determine the type of angle simply measure the given angle with a protractor. A Right Angle is an angle with a measurement of 90$^{\circ}$. Since the given angle measures 90$^{\circ}$ it is a Right Angle. This is also denoted by the small red square in the corner of the angle.
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