What does the bisector of an angle create between the two sides?

The bisector of an angle divides the angle into two equal parts. This means that the two angles formed on either side of the bisector will have the same measure. For example, if the original angle measures 80 degrees, the angle bisector creates two angles, each measuring 40 degrees. This principle holds true regardless of the size of the original angle; the defining feature of an angle bisector is that it creates two angles that are congruent, or equal in measure.

In this context, the other options do not apply because a bisector, by definition, specifically aims to create equality between the two resulting angles, while none of the other choices accurately represent the function of an angle bisector.