Question

ans this fast.. I will mark you as the brainliest

Answer 1

if we see the middle fig in different way it will form a square then we know the diagonals 
8cm and 8cm
then, 
$\frac{1}{2} *8*8$
so it will 32 cm^2
then area of bigger figure (14)^2
196
now shaded region 
196-32= 164cm^2