Adjacent Angles

Two angles are Adjacent if they have a common side and a common vertex (corner point) and don't overlap.

	Angle ABC is adjacent to angle CBD Because: they have a common side (line CB) they have a common vertex (point B)

What Is and Isn't an Adjacent Angle

These ARE Adjacent Angles they share a vertex and a side		NOT Adjacent Angles they only share a vertex, not a side		NOT Adjacent Angles they only share a side, not a vertex

Don't Overlap!

ALSO the angles must not overlap.