Decimals can't have a square root.
Improved Answer:-
Change it into a fraction as for example 0.25 = 1/4 and its sq rt = 1/2
Some fractions when square rooted are Irrational Numbers
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6.3245553 (rounded)
9.486832981
405 is exactly 9 times the square root of five . The square root of 5 is irrational and can only be approximated with decimals.
Square root of 10. If you need decimals, use the calculator to calculate the square root of 10.
sqrt(8) = sqrt(4) * sqrt(2) = 2 * sqrt(2) = 2 * 1,4142 2,8284(..) To calculate the square root of 2 I needed a calculator. This number is irrational (you can prove that) which means there is no repeating part in the decimals of the square root of 2, and not in the square root of 8 either.