Answer
The angles of an octagon add up to 1080 degrees, and there are 8 angles. Since the octagon is regular, meaning that the angles are equal, this means that each angle is 135 degrees.
Work Step by Step
Elementary Geometry for College Students (7th Edition)
by Alexander, Daniel C.; Koeberlein, Geralyn M.
Published by
Cengage
ISBN 10:
978-1-337-61408-5
ISBN 13:
978-1-33761-408-5
Chapter 3 - Section 3.4 - Basic Constructions Justified - Exercises - Page 166: 32
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