Answer
The triangle is a right triangle.
Work Step by Step
The triangle is a right triangle
because
$ 5\times5=4\times4+3\times3$
$25=25$
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 5 - Section 5.4 - The Pythagorean Theorem - Exercises - Page 250: 13a
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