If you know your squares, you know that 82 is 64, 92 is 81, so we know that the square root is between 8 and 9. Using a calculatory device, we find it is ~8.94.
Square root of 81
A negative number cannot have a square root in basic mathematics. However, in more advanced mathematics, you will study complex numbers. And there you will find that the square roots of -80 are ± 8.944*i where i is the imaginary square root of -1.Incidentally, ± 8.944 are the square roots of +80.
√80 = 8.94427191
square root of 125/80 = 1.25 or 5/4
16
√6400 = 80* * * * *OR -80
No, the square root of 6400 is 80, and 3200 squared is 10240000.
Thr square root of 80656 is 284
4 times the square root of 5