Answer
$\triangle DEF $ is an Isosceles
Work Step by Step
In $\triangle DEF, DE= 6, EF = 6, and DF = 8$.
$DE=EF=6$ Two sides of the given triangle are equal
$\triangle DEF $ is an Isosceles
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 2.4 - The Angles of a Triangle - Exercises - Page 92: 7b
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