Elementary Geometry for College Students (5th Edition)

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

Chapter 7 - Section 7.1 - Locus of Points - Exercises: 29


This is a plane that is 4 feet in the air at all points.

Work Step by Step

Recall, a locus is the same distance from either plane no matter what. Since the book specifies that this distance should be half way between the two planes, it follows that there must be a parallel plane that is 4 feet above the ground (and thus 4 feet below the ceiling).
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