In Geometry, there are special pairs of angles that have names. They have names because they show up so often, mathmaticians named each special pair.
We will cover each pair in order.
Two angles are called "Complementary Angles" if their degrees add to equal exactly 90°.
Two angles are called "Supplementary Angles" if their degrees add to equal exactly 180°.
Two angles are called a "Linear Pair" if the two angles form a straight line when placed adjacent, or next to, eachother. No spaces can be between the two angles. They must be adjacent.
Two angles are called a "Vertical Angles" if the two angles are formed by two lines that cross eachother. Vertical Angles are across the intersection from eachother and can never be adjacent angles.
Two angles are called a "Adjacent" if the two angles are right next to eachother and there are no angles between them.
Now you know the five names and definitions, let's look at some examples of each type.
