The reference angle for an angle whose measure is -440° is _____. 60° 80° 100°
1 answer:
Answer:
80°
Step-by-step explanation:
The reference angle is the smallest angle that the terminal side of a given angle makes with the x-axis.
An angle of -440° lies in the fourth quadrant.
For an angle θ in the fourth quadrant, the reference angle is 360° + θ.
The reference angle is
360° - 440° = 80°
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