Elementary Geometry for College Students (7th Edition)

Published by Cengage
ISBN 10: 978-1-337-61408-5
ISBN 13: 978-1-33761-408-5

Chapter P - Preliminary Concepts - P.1 - Sets and Geometry - Exercises P.1 - Page 7: 29

Answer

3

Work Step by Step

This question is asking for the number of sides in a triangle. As shown in the diagram, every triangle has 3 sides, so the answer is 3.
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