The midpoint or bisector divides a segment into two congruent parts.
The midpoint divides a line segment into congruent parts.
Bisector
bisecting
It's called a Midpoint.
A bisector.
area congruent angles congruent segment
the middle of something divides it into two equal parts not the center because the center divides it into 4 equal parts
A point on a line segment that divides the segment into two equal parts is a midpoint.
the line of symmetry
A line segment that divides a circle in two is a chord.If the two parts of the circle are equal, the line segment is a diameter.See 'The Parts of the Circle' in Sources and related links, below.
midpoint