Answer:
You caluculate the value of the segment then multiply it by 1/4. After that you move the compass to match the radius of the segment
Step-by-step explanation:
Sorry if that didnt make sense
1/2 for red, 1/4 for blue, or if you are speaking of both together it is 3/4
For trapezoid, the area = (upper base + lower base) * height / 2
So area = (12 + (2*2 + 12) ) *13 / 2 = 182