Verified Answer :

Since 11×11=12111×11=121, the square root of 121 is 11. =) 

missyvee

\(\sqrt{121} = +11 and -11\)
If you take the square root of something, you are looking for what number, when squared, will give you the number within the square root. 
Ex: \(\sqrt{9} = 3\)
\(3^{2} = 9\)

so with \(\sqrt{121}\) both \(-11^{2}\) and \(+11^{2}\) with give you 121

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