Answer
x=50
Work Step by Step
m$\angle$ABC=m$\angle$A'B'C'
$\frac{x}{2}$+5=$\frac{x}{5}$+20
$\frac{3x}{10}$=15
x=50
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 2.6 - Symmetry and Transformations - Exercises - Page 117: 33
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