Identifying Angle Pairs 5.12

Front

What are supplementary angles?

Back

Two angles that add up to 180 degrees.

Front

What are vertical angles?

Back

Angles that are opposite each other when two lines intersect; they are equal.

Front

What are corresponding angles?

Back

Angles that are in the same position on two parallel lines in relation to a transversal; they are equal.

Front

What are alternate exterior angles?

Back

Angles that are on opposite sides of a transversal and outside the two lines; they are equal when the lines are parallel.

Front

What are same side interior angles?

Back

Angles that are on the same side of the transversal and between the two lines; they are supplementary when the lines are parallel.

Front

What are same side exterior angles?

Back

Angles that are on the same side of the transversal and outside the two lines; they are supplementary when the lines are parallel.

Front

How do you identify vertical angles?

Back

Look for angles that are opposite each other at the intersection of two lines.

Front

How do you identify corresponding angles?

Back

Look for angles that occupy the same relative position at each intersection of a transversal with two lines.

Front

What is the relationship between alternate interior angles when lines are parallel?

Back

They are equal.

Front

What is the relationship between same side interior angles when lines are parallel?

Back

They are supplementary.