Answer:
A
Area of shaded region = 21.5 m^2
Attached is the image used in the question.
Explanation:
The area of a square or rectangle is given as;
Area = length × breadth
A = l×b
The area of a circle is;
Area = πr^2 = (πd^2)/4
Given;
From the attached image;
Length l = breadth b = diameter d = 10 m
Area of shaded region = area of square - area of circle
As = l×b - (πd^2)/4
Substituting the values;
As = 10×10 - (π×10^2)/4
As = 100 - 78.54
As = 21.460
As = 21.5 m^2
Area of shaded region = 21.5 m^2