Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)

Published by Pearson
ISBN 10: 0-32184-874-8
ISBN 13: 978-0-32184-874-1

Chapter 10 - Exponents and Radicals - 10.7 The Distance Formula, the Midpoint Formula, and Other Applications - 10.7 Exercise Set - Page 677: 23


24 inches

Work Step by Step

The Pythagorean theorem states: $$ a^2+b^2=c^2$$ Thus, we obtain: $$ a=\sqrt{51^2-45^2}\\ a=\sqrt{576}\\ a=24$$
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