Question

What's the square root of 121?

Answer 1

Think: the sqrt of 100 is 10; the sqrt of 144 is 12, so the sqrt of 121 has to be between 10 and 12. Try 11. Is 11^2 = 121? YES.

The sqrt of 121 is 11.

Answer 2

The square root of 121 is 11.