Answer
C.
Work Step by Step
The Pythagorean Theorem states that $a^2+b^2=c^2$.
$$r^2+s^2=D^2$$
$$\sqrt(r^2+s^2)=D$$
College Algebra (11th Edition)
by Lial, Margaret L.; Hornsby John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
0321671791
ISBN 13:
978-0-32167-179-0
Chapter 1 - Section 1.5 - Applications and Modeling with Quadratic Equations - 1.5 Exercises - Page 118: 2
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