Answer
$8$
Work Step by Step
In order to find the square root of a number $n$, we must find another number whose square is $n$. In this example, we want to find the square root of $64$. Since $8^2=8\times8=64$, $8$ is the square root of $64$.
Geometry: Common Core (15th Edition)
by Charles, Randall I.
Published by
Prentice Hall
ISBN 10:
0133281159
ISBN 13:
978-0-13328-115-6
Chapter 10 - Area - Get Ready! - Page 611: 6
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