Answer:
[tex]36 = b^{2} \\\sqrt{36} =\sqrt{b^{2} }[/tex]
Step-by-step explanation:
For any square, A = side x side, or "side squared"
If area is given, reverse the process-- take the square root of the Area.
in this question "b" is the side, [tex]A=b^{2}[/tex] so substitute the value and solve[tex]36 = b^{2} \\\sqrt{36} =\sqrt{b^{2} }[/tex]
6 = b