Answer:
See below
Step-by-step explanation:
There aren't any shaded area given and no diagram. So, the answer choices won't hold. I will attach one figure that has shaded region and show general way of finding area.
Here,
We have a square
Also, we have a circle
The area of shaded region is:
Area of Shaded = Area of Square - Area of Circle
Area of Square = length * length
Area of Circle = [tex]\pi r^2[/tex]
Now,
Area of square with lengths 20 each, is:
Area of Square = 20*20 = 400
Also,
Area of circle with diameter given 20, means radius is 20/2 = 10, so
Area of Circle = [tex]\pi (10)^2 = 100\pi[/tex]
Area of Shaded = [tex]400-100\pi=85.84[/tex] square centimeters
