The square root of 389 is an irrational number. It has a non-terminating, non-repeating decimal representation. As a result, having found a close estimate, a decimal fraction with one more digit after the decimal place will always be closer. The roots are approx +-/ 19.72
The square (not sqare) root is approx 23031.054
The square root of 389 is 19.72308292.
12768.
1.772453850905516027298167483314
3.60555127546398
16
8.6023252670426267717294735350497
11.18
37
51
6.2449979983983982058468931209398
It is: 400