I need help on this answer

Answer:
The answer is B (AKA) 102
Step-by-step explanation:
180-78
one angle is 180 degrees
Answer:
102
Step-by-step explanation:
These two angles together add up to 180 degrees because they are supplementary. All you have to do to find this answer is subtract 78 from 180 to get 102.
180-72=102