What characteristic do concurrent lines share?

Concurrent lines are characterized by their intersection at a single point. This means that if we have three or more lines, they all meet at one specific location in a plane. The concept of concurrency is essential in geometry, particularly in various applications involving triangles, such as the medians and altitudes, where multiple segments intersect at a common point known as the centroid or orthocenter.

The option emphasizing that they have multiple points of intersection misrepresents the definition of concurrent lines because those lines will only intersect at one specific location. The idea that concurrent lines never meet contradicts their very definition, as they must meet at a point to be considered concurrent. Furthermore, the assertion that they all form right angles is also incorrect because concurrency does not imply any specific angle relationships; lines can intersect at any angle. Therefore, the defining feature that sets concurrent lines apart is their convergence at a single point.