Elementary Geometry for College Students (5th Edition)

Published by Brooks Cole
ISBN 10: 1439047901
ISBN 13: 978-1-43904-790-3

Chapter 2 - Section 2.1 - The Parallel Postulate and Special Angles - Exercises: 7

Answer

Angle 9 appears to be a right angle.

Work Step by Step

When interior angles of traversal on two parallel lines are bisected then the angle where they meet is always a right angle.
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