Geometry: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281159
ISBN 13: 978-0-13328-115-6

Chapter 1 - Tools of Geometry - 1-4 Measuring Angles - Lesson Check - Page 31: 4

Answer

0 or 1.

Work Step by Step

Congruent angles can share 0 or 1 sides. Congruent angles can be two completely separate angles ,or they may have the same vertex and share one side.
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