Elementary Geometry for College Students (6th Edition)

Published by Brooks Cole
ISBN 10:
ISBN 13:

Chapter 1 - Section 1.6 - Relationships: Perpendicular Lines - Exercises - Page 50: 29

Answer

When $\angle AOB$ is subdivided into a certain number of angles, the sum of these angles must be $180^{\circ}$

Work Step by Step

Since AB is a straight line, the angle $\angle AOB$ is equal to $180^{\circ}$ When $\angle AOB$ is subdivided into a certain number of angles, the sum of these angles must be $180^{\circ}$
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