Vertical Angles and Linear Pairs


Figure 1

When you change the size of AED what do you notice about CEB?

In the question above, <AED and <CEB are Vertical Angles.

List another pair of vertical angles in the diagram.

What is the relationship between <AED and <DEB?

In the diagram above <AED and <DEB are called a Linear Pair.

What angle is a linear pair with <AEC?