Answer
$P=26 $
Work Step by Step
Perimeter of isosceles $\triangle ABC$ = sum of all three sides
$P= AB+BC+AC$
$P= 8+10+8 $
$P=26 $
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 3 - Section 3.3 - Isosceles Triangles - Exercises - Page 146: 29
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