To find coterminal angles, you have to either add or subtract 2π. In this case, you would use 8π/4 so there is a common denominator.
Positives:
-3π/4+8π/4 = 5π/4
5π/4+8π/4 = 13π/4
Negative:
-3π/4-8π/4 = -11π/4
-11π/4-8π/4 = -19π/4
<h3>What is the measure of an angle?</h3>
In geometry, an angle measure is the length of the angle formed by two rays or arms intersecting at a common vertex.
Using a protractor, angles are measured in degrees (°). Joseph Huddart created the protractor in 1801. It was a more sophisticated protractor.
The angle created at the center of a circle is measured in radians, the unit of angular measurement. It is described as an angle that subtends from a circle's center and intercepts at an arc with a radius equal to the circle's radius. 57.3° is equal to one radian.
Acute angle, Obtuse angle, Right angle, Straight angle, reflex angle, and full rotation are the names of basic angles.
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