What does vertex of an angle mean?

Answer 1

Oh honey, the vertex of an angle is just the fancy math term for the point where two rays meet to form that angle. It's like the corner of a room, but in math land. So next time you hear someone talking about a vertex, just remember it's where the angle's action is happening.

Answer 2

The vertex of an angle is the point where the two rays meet.

An example is angle ABC. the two rays are ray BA and ray BC. The two rays meet at point B.