Geometry: Common Core (15th Edition)

by Charles, Randall I.

Published by Prentice Hall

ISBN 10: 0133281159

ISBN 13: 978-0-13328-115-6

Chapter 1 - Tools of Geometry - Chapter Test - Page 75: 22

Answer

never

Work Step by Step

Postulate 1-3 tells us the intersection of 2 planes is a line.

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