Question

the area of a square is 81 square units. which expression represents the side length of the square? \\(\sqrt{81}\\) what is the side length of the square? \\(\sqrt{81}=\\)

Explanation:

Step1: Recall the square root of 81

We know that \( 9\times9 = 81 \), so the square root of 81 is 9.
$$\sqrt{81} = 9$$

Answer:

9