Answer:
159.5 degrees
Step-by-step explanation:
The supplement of an angle has the same sine value as the angle.
the answerrrrrrr is
356.85
60 degrees
A triangle is 180 degrees and there is already 40 and 80 degrees.
So... 180-80-40=60 degrees.
Hope this helps :D
yea, option b I guesssssss