Answer
$13$
Work Step by Step
To find out the square root of a number, we must find the number whose square is the original number. Therefore, $\sqrt {169}=13$, because $13^2=169$.
Geometry: Common Core (15th Edition)
by Charles, Randall I.
Published by
Prentice Hall
ISBN 10:
0133281159
ISBN 13:
978-0-13328-115-6
Skills Handbook - Squaring Numbers and Finding Square Roots - Exercises - Page 889: 8
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