Answer
4cm
Work Step by Step
4cm must be the base because if two sides had a measure of 4cm then the third side must be less than 8cm, but it is given as 10cm so it is not possible.
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 3 - Section 3.5 - Inequalities in a Triangle - Exercises - Page 165: 19
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