Answer: 68%
Explanation:
Computing the area of the triangle:
= 4^2
= 16
Computing the area of the circle:
= π4^2
= 16π
= 50.26548
Computing the area of the yellow region:
= 50.26548 - 16
= 34.26548
Percentage of yellow region:
= 34.26548/50.26548
= 0.68 or 68%