Answer
5 sides
Work Step by Step
I=$\frac{(n-2)\times180}{n}$
n(I-180)=-360
n=$\frac{-360}{(I-180)}$
n=$\frac{-360}{(108-180)}$
n=5
Elementary Geometry for College Students (5th Edition)
by Alexander, Daniel C.; Koeberlein, Geralyn M.
Published by
Brooks Cole
ISBN 10:
1439047901
ISBN 13:
978-1-43904-790-3
Chapter 2 - Section 2.5 - Convex Polygons - Exercises - Page 105: 15a
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