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2 years ago

What is the reference angle of -139 degrees

Mathematics

2 answers:

katrin [286]2 years ago

6 0

41º

1) Since we want to find the reference angle for a -139º angle, we need to resort to the following formula

$Reference\:Angle\:\:Quadrant\:III=180^{\circ}-139^{\circ}=41^{\circ}$

2) Note that a -139 angle is in quadrant III, since negative angles are clockwise oriented

3) Thus the Reference Angle is 41º

Morgarella [4.7K]2 years ago

4 0

Answer:

41°

Step-by-step explanation:

Find the acute angle in the first quadrant used as a reference for

−139°.

41°

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