Answer
$AB=a\sqrt 2$
Work Step by Step
By (45-45-90 Theorem)
$AB=a\sqrt 2$
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 5 - Section 5.5 - Special Right Triangles - Exercises - Page 247: 1b
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