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What is the square root of $81$ ? $\newline$ _____

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Square roots of perfect squares

Full solution

Q. What is the square root of

81

?

\newline

_____

Identify Number: Step $1$ : Identify the number whose square root is needed. $\newline$ We need to find the square root of $81$ .
Calculate Square Root: Step $2$ : Calculate the square root. $\newline$ $\sqrt{81} = 9$ , because $9 \times 9 = 81$ .

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