#### Answer

$11$

#### Work Step by Step

$\sqrt {121}=\sqrt {11^{2}}=(11^{2})^{\frac{1}{2}}=11$

Published by
Brooks Cole

ISBN 10:
0-53449-636-9

ISBN 13:
978-0-53449-636-4

$11$

$\sqrt {121}=\sqrt {11^{2}}=(11^{2})^{\frac{1}{2}}=11$

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