A square root of a number x is a number y such that y² = x. Or, √x = y.
Therefore the square root of 121 is:
[tex] \sf\sqrt{121} \\ = \sf{ \sqrt{11 \times 11} } \\ = \sf \: \: 11[/tex]
Answer:
11
Hope you could understand.
If you have any query, feel free to ask.
