we are having two geometry here one is circle and other one is square.
we know hat circle is inscribed in a square .
so Area of the shaded region=[tex] area of square - area of circle [/tex].
square has a side of 8 m. a= 8m
circle has a diameter of 8 m so the radius=4m.
area of the shaded region=[tex] (a^2)-(3.14*r^2)=(8^2)-(3.14*14)=13.76m^2 [/tex]