Geometry: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281159
ISBN 13: 978-0-13328-115-6

Chapter 6 - Polygons and Quadrilaterals - Algebra Review - Page 399: 10

Answer

$13$

Work Step by Step

$169$ is a perfect square, so we take the square root of $169$ to solve: $\sqrt {169} = 13$
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