Answer:
7739.44 square yards
Explanation:
Given:
Length of the square plot = 105 yards
Area of square plot =

Length of rectangular plot is same as square plot.
Area of the rectangular plot =

Now, we know that, area of square is equal to the square of its length.
Therefore, the area of square is given as:

Now, area of rectangular field =

Now, area of leftover = Area of square plot - Area of rectangular field
∴ Area of leftover = 11025 - 3285.56 = 7739.44 square yards