Answer:
140 degrees.
Step-by-step explanation:
Because BD is a tangent to the circle the angle ABD = 90 degrees.
So m < BAD = 180 - 90 - 50
= 180 - 140 = 40 degrees. ( as there is 180 degrees in a triangle).
So m < BAF = 180 - 40 = 140 degrees (adjacent angles).
