Elementary Geometry for College Students (7th Edition)

Published by Cengage
ISBN 10: 978-1-337-61408-5
ISBN 13: 978-1-33761-408-5

Chapter 1 - Section 1.5 - The Formal Proof of a Theorem - Exercises - Page 68: 14

Answer

If two lines meet to form a right angle, then these lines are perpendicular.

Work Step by Step

Given: The blue line and the black line meet to form a right angle. Proof: We can see that the blue line and the black line are perpendicular. Therefore, if two lines meet to form a right angle, then these lines are perpendicular.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.