A line.
line
Parabola - apex
They are parallel lines
parabola
A parabola.
line
parabola
Bisector of an angle, is defined as the set of all points in a plane that are equidistant from the two sides of a given angle.
Parabola - apex
They are parallel lines
parabola
A parabola.
Parallel lines could fit the given criterior
Parallel lines could fit the given criterior
Math
If your asking "What is ...?" Then, the answer is a circle. This is the definition of a circle!
angle bisector