The square root of 126 is ± 11.224972.
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in decimal form the answer is 18.7082869
11.2
The square root of a/b is equal to the square root of a divided by the square root of b. I hope this helps you.
sqrt(126) = 11.22 (to 2 dp).
The square root of 49 is 7 which is a whole number but it can be expressed as 7/1 which is an improper fraction.