Answer :
Answer:
Since the angle 140° is in the second quadrant, the reference angle formula is Ar=180°−Ac. A r = 180 ° - 140 = 40°
Step-by-step explanation:
Answer:
Since the angle 140° is in the second quadrant, the reference angle formula is Ar=180°−Ac. A r = 180 ° - 140 = 40°
Step-by-step explanation: