Answer:
There are several ways to look at this
Consider the interior angles of a triangle:
33 + A = 90
52 + B = 90
85 + A + B = 180 interior angles of a triangle must sum to 180
So 180 - 85 = 95 which completes the triangle and would be EKD
Or 33 counterclockwise + X clockwise + 52 counter clockwise = 0
X must be 85 and is exterior to EKD and again
EKD = 180 - 85 = 95
If you consider the geometry and the corresponding angles you should be able to get a satisfactory answer
One can draw the line ED and consider the angles involved