Answer:
The area is [tex]28\ m^{2}[/tex]
Step-by-step explanation:
I assume that the figure is a square
The area of a square is equal to
[tex]A=b^{2}[/tex]
where
b is the length side of the square
In this problem we have
[tex]b=2(\sqrt{7})=2\sqrt{7}\ m[/tex]
substitute in the formula
[tex]A=(2\sqrt{7})^{2}[/tex]
[tex]A=28\ m^{2}[/tex]
