The square root of the number 81 is 9.
What is square root?
A square root can be regarded as a factor of a number in the sense that when that number is multiplied by itself, it gives the original number.
The 2 roots can be written greater concisely the usage of the ± sign as m despite the fact that the main square root of a wonderful variety is only certainly one of its square roots, the designation root is often used to refer to the main square root
9x9 is 81
∴ The square root of 9 is 81.
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