No, they are rational.
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Rational
irrational square root of 121 = 11 square root of 1.21 = 1.1 square root of 12.1 = 3.47...
Cubed root of 121 is about 4.95
Square root of 10 is irrational.
The square root of 121 is the number which multiplied by itself will give 121, the answer is 11. (11*11=121). we write 11*11 as 112 thus if 112 = 121, then the square root of 121 or √121= 11 as you can see a square root of a number is the opposite of the square of a number