we are having two geometry one is circle inscribed in a square.
we know that side o square is 8 m.
then the radius of circle will be 4 m.
we know that side of a square and diameter of circle are same.
Area of shaded region =[tex] area of square - area of circle [/tex]
A=[tex] (a^2)-(3.14*r^2)=8^2-(3.14*16)=134.76m^2 [/tex]