Consecutive Angles

Consecutive angles are two angles that share the same vertex and one side, but do not overlap.
example of consecutive angles

In geometry, consecutive angles share a side but do not overlap in their interior regions.

Consecutive angles are a type of associated angles by position.

The sum of two consecutive angles can vary and may form either a convex or concave angle, depending on their measures.

an example of consecutive angles between a convex and a concave angle

For consecutive angles, the other sides do not need to be aligned.

The difference between consecutive and adjacent angles. When the non-shared sides are also aligned, meaning they lie on the same line, the consecutive angles are called adjacent angles, and their sum is always equal to a straight angle (180°).
example of an adjacent angle
Therefore, an adjacent angle is always also a consecutive angle. However, a consecutive angle is not necessarily an adjacent angle, because the opposite sides might not be aligned.

And so on.