Answer
3.87 inches
Work Step by Step
Area = $x^{2}$ = 15
X= $\sqrt 15$ $\approx$ 3.87
Algebra 1: Common Core (15th Edition)
by Charles, Randall I.
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 - Got It? - Page 19: 4
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