Find the angle z.
There are 180 degrees in a triangle.
Use triangle ABC
So 180 - 40 - 44 - 52 = 44
z = 44
Let the intersection of AC and BD be O.
z = 180 - 96 - 40 = 44 degrees.
Edit: It appears that most of my answer has been deleted, sorry about that.
+1223 
