Answer
$121$
Work Step by Step
To square a number, we multiply the number by itself. Therefore: $$11^2=11\cdot11=121$$
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: 1
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