Answer:
The answer is 72
First you find E=180-130=50
Then you add all the angles and subtract from 360
102+100+50=252
360-252=108
then you do 180-108=72
I think the answer mightttttt beeeee hmmm
Weird that the only choices are given as integrals with respect to

. (Integration along the

axis would be way easier, but whatever)
The fourth option should do it.
4+5 would be 9 because you add 4 and 5