Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 1 - Foundations for Algebra - 1-3 Real Numbers and the Number Line - Practice and Problem-Solving Exercises - Page 22: 72


15 inches

Work Step by Step

A square has equal sides, and the area of a square is determined by the formula: $Area=length^{2}$. In this problem, the area is provided as $225$. Plug the given area into the formula: $\sqrt 225=\sqrt {length^{2}}$ Simplify: $15= length$. Therefore, the length of the square is 15 inches.
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