It is a line of symmetry
A line of symmetry
Bisector.
hemisphere
angle bisector
It's called a Midpoint.
A line of symmetry
Divider
Bisector.
A bisector.
diameter
The parallel is called the equator.
hemisphere
angle bisector
It's called a Midpoint.
bisector
Such a ray is called a "bisector" of the angle.
the middle of something divides it into two equal parts not the center because the center divides it into 4 equal parts