Answer:
[tex]\sqrt{330}[/tex]
Step-by-step explanation:
The area of a square, [tex]A_{\square}[/tex], is calculated by the square of its sides ([tex]s^2[/tex]). If you want to find [tex]s[/tex], given the [tex]A_{\square}[/tex], you are just going to take the principal square root of ([tex]A_{\square}[/tex]).
We are given the average area of the living rooms in the United States ([tex]330[/tex]). If a living room in the United States is in the shape of a square, the average of its side is [tex]\sqrt{330}[/tex].
Solving for [tex]\sqrt{330}[/tex] without a calculator:
The numbers [tex]330[/tex] has no factor that is a perfect square. This means that we cannot write [tex]\sqrt{330}[/tex] any simpler.