Question 862892
The area of a square is the length of one side squared.
{{{A=s^2}}}
Substitute 18 for the area
{{{18=s^2}}}
Take the square root of both sides
{{{sqrt(18)=s}}}
{{{sqrt(9*2)=s}}}
{{{sqrt(9)*sqrt(2)=s}}}
{{{3sqrt(2)=s}}}, or about 4.24 feet.