What term describes points that lie on the same line?

The term that describes points that lie on the same line is "collinear points." Collinear points can be any set of points, regardless of how many there are, as long as they can be connected by a single straight line.

In the context of geometry, recognizing collinear points is essential because it helps with understanding the properties of lines, line segments, and various geometric configurations. For example, if given three points, if they are collinear, then they can be aligned in such a way that if you picked any two points among them, the third must lie on the line segment that connects the other two.

The other terms listed refer to different concepts. Complementary angles are two angles whose measures add up to 90 degrees, while supplementary angles are those that add up to 180 degrees. Concurrent points refer to three or more lines that intersect at a single point, which is unrelated to the linear arrangement of points. Understanding these distinctions emphasizes the unique nature of collinear points in geometry.