<P> Other segments of interest in a triangle include those connecting various triangle centers to each other, most notably the incenter, the circumcenter, the nine - point center, the centroid, and the orthocenter . </P> <P> In addition to the sides and diagonals of a quadrilateral, some important segments are the two bimedians (connecting the midpoints of opposite sides) and the four maltitudes (each perpendicularly connecting one side to the midpoint of the opposite side). </P> <P> Any straight line segment connecting two points on a circle or ellipse is called a chord . Any chord in a circle which has no longer chord is called a diameter, and any segment connecting the circle's center (the midpoint of a diameter) to a point on the circle is called a radius . </P> <P> In an ellipse, the longest chord, which is also the longest diameter, is called the major axis, and a segment from the midpoint of the major axis (the ellipse's center) to either endpoint of the major axis is called a semi-major axis . Similarly, the shortest diameter of an ellipse is called the minor axis, and the segment from its midpoint (the ellipse's center) to either of its endpoints is called a semi-minor axis . The chords of an ellipse which are perpendicular to the major axis and pass through one of its foci are called the latera recta of the ellipse . The interfocal segment connects the two foci . </P>

How would you explain that the segment you created are equal in length