Answer
$\overline{DF}=\sqrt 34$
Work Step by Step
$5^{2}+3^{2}=\overline{DF}^{2}$
$25+9=\overline{DF}^{2}$
$34=\overline{DF}^{2}$
Square root each side
$\sqrt 34 = \overline{DF}$
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: 7b
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