how do I work this out and what's the answer?

Answer:
66 degrees! Hope it Helps!!!!
Step-by-step explanation:
So the total angle amount of a square is 360
lets first figure out what x is...
angle B and angle D is equal, forming a equation.
6x-96=3x
simplify that...
x=32
Now pluggin x into the equation (6x-96)&(3x)
96 and 96
Now add all the angles forming this equation: (?+102+96+96=360)
?=66