If you look at angle a there is a triangle or isosceles triangle and 2 angles would always be = to eachother so one side is 44. At point b the line touches the circle (diameter) forming another triangle at CBE
And angle which would be 90 degrees
Do 52+90 =142
180-142=38
Then you’d do 44+38=82
180-82=98
(This is because angles on straight line add up to 180)
ANSWER = 98