Answer:
12.56%
Step-by-step explanation:
Total Area = bh = 10*10 = 100 square units.
Area of the red circle = [tex]\pi r^2=3.14\cdot 2^2=12.56\:[/tex] square units.
[tex]\frac{12.56}{100}\cdot 100\%=12.56\%[/tex]
