Answer
5 diagonals
Work Step by Step
D=$\frac{n(n-3)}{2}$
D=$\frac{5(5-3)}{2}$
D=5
Elementary Geometry for College Students (7th Edition)
by Alexander, Daniel C.; Koeberlein, Geralyn M.
Published by
Cengage
ISBN 10:
978-1-337-61408-5
ISBN 13:
978-1-33761-408-5
Chapter 2 - Test - Page 133: 8b
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