Elementary Geometry for College Students (5th Edition)

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

Chapter 1 - Section 1.3 - Early Definitions and Postulates - Exercises - Page 29: 22c

Answer

Two parallel planes with another plane that intersects them.

Work Step by Step

Draw two parallel planes as in problem 22b. Then draw a third plane at a different angle than the other two so that it forms a line at the intersections with the other two planes.
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