A bisector.
It is a line of symmetry.
bisector
numerator and denominator
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.
the middle of something divides it into two equal parts not the center because the center divides it into 4 equal parts
Lake Michigan divides Michigan into two parts
The lower quartile divides the lower half into two equal parts.
The midpoint or bisector divides a segment into two congruent parts.
The midpoint divides a line segment into congruent parts.
A bisector.
It is a line of symmetry.
The mediastinum, a broad, middle tissue partition, separates the lungs from each other and divides the thoracic cavity into two parts. It contains vital structures such as the heart, esophagus, trachea, and major blood vessels.
in your heart there two parts you and me
The equator.
bisector
numerator and denominator