Which angle has a positive measure?

On a coordinate plane, a ray moves counter-clockwise to form an angle. It moves from quadrant 1 to quadrant 4.

On a coordinate plane, a ray moves counter-clockwise to form an angle. It moves from quadrant 1 to quadrant 2.

On a coordinate plane, a ray moves clockwise to form an angle.

On a coordinate plane, a ray moves clockwise to form an angle.

Question

Mathematics

Leandro Kirk

27 April, 21:25

Which angle has a positive measure?

On a coordinate plane, a ray moves counter-clockwise to form an angle. It moves from quadrant 1 to quadrant 4.

On a coordinate plane, a ray moves counter-clockwise to form an angle. It moves from quadrant 1 to quadrant 2.

On a coordinate plane, a ray moves clockwise to form an angle.

On a coordinate plane, a ray moves clockwise to form an angle.

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Answers (1)

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Maya · Answer 1

Usually the angles are measured from quadrant 1, where is the angle 0°.

If the angle moves counterclokwise, it is positive, if the angles goes clokwise, it is negative.

Then "On a coordinate plane, a ray moves counter-clockwise to form an angle. It moves from quadrant 1 to quadrant 4."

Will give a positive angle, and because we know that is in quadrant 4, the angle can be any angle between 270° and 360°

"On a coordinate plane, a ray moves counter-clockwise to form an angle. It moves from quadrant 1 to quadrant 2."

Same as before, this will create an angle with a positive measure, and the angle will be between 90° and 180°