What is an example of lines that are a linear pair

The video tutorial explains the concept of opposite rays, which are two rays sharing the same endpoint and are colinear, forming a line. It further explores linear pairs, which are adjacent angles on a line, and provides examples and nonexamples to illustrate these concepts. The tutorial emphasizes understanding the properties of opposite rays and linear pairs through practical examples.

In the context of angles, what does it mean for two angles to share a common vertex and side?

What distinguishes an example of a linear pair from a nonexample?