Answer:
[tex]6 \sqrt{2} [/tex]
if you don't have to simplify it, it is
[tex] \sqrt{72} [/tex]
Step-by-step explanation:
the equation for the area of a square is
[tex]a = {s}^{2} [/tex]
substitute 72 for a
[tex]72 = {s}^{2} [/tex]
take the square root of both sides to cancel out the square on the s
[tex] \sqrt{72} = \sqrt{ {s}^{2} } [/tex]
[tex] \sqrt{72} = s[/tex]
if you need it simplified, find the perfect square that makes up 72. It is 36.
[tex] \sqrt{36 \times 2} = s[/tex]
take the square root of 36
[tex]6 \sqrt{2} = s[/tex]
