Answer
35 diagonals
Work Step by Step
D=$\frac{10(10-3)}{2}$
D=$\frac{70}{2}$
D=35
Elementary Geometry for College Students (6th Edition)
by Alexander, Daniel C.; Koeberlein, Geralyn M.
Published by
Brooks Cole
ISBN 10:
9781285195698
ISBN 13:
978-1-28519-569-8
Chapter 2 - Section 2.5 - Convex Polygons - Exercises - Page 100: 5b
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