64 = 8 x 8
81 = 9 x 9
so around 8.5
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The square root of 72 is equivalent to 6 times the square root of 2.
Well, there technically is not a way to simplify the square root of 2, but the simplified version of the square root of 72 is 6 square root 2
The estimate of the square root of 229 = ± 15 (actual square root is ± 15.132746).
Yes, it does.
Rounded to two decimal places, the square root of 72 is 8.49.