Answer:
Square Area = ( one side length)²
784 = (AB)²
AB = 28
circle radius = 14
pi = 3.142
semi circle parameter = pi × r
= 3.142 × 14 = 43.988
square parameter = 3 × 28 = 84
we dont calculate the 4th side.
parameter of the figure = 43.988+ 84= 127.988