Thinking Mathematically (6th Edition)

Published by Pearson
ISBN 10: 0321867327
ISBN 13: 978-0-32186-732-2

Chapter 10 - Geometry - 10.1 Points, Lines, Planes, and Angles - Exercise Set 10.1 - Page 618: 76

Answer

The given statement makes sense.

Work Step by Step

If some lines are perpendicular to two parallel lines then those lines will also be parallel to each other. The vertical lines in the ladder are perpendicular to all the horizontal lines in the ladder and therefore, it can be concluded that the vertical lines in the ladder are perpendicular to each other. The given statement makes sense.
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