Answer:
%age of shaded part = 73%
Step-by-step explanation:
Perimeter = 4(length)
Length = 40/4
L = 10 cm
Now
Finding the area of the shaded part:
= (10×10) - (3×10)/2 - (6×4)/2
= 100 - 15 - 12
= 85 - 12
= 73 cm²
Now Converting into %age
Area of square = 100 cm²
So
%age of shaded part = (73/100) × 100%
%age of shaded part = 73%
