Identifying Angle Relationships

Front

What are corresponding angles?

Back

Angles that are in the same position on two parallel lines cut by a transversal. They are equal in measure.

Front

What are alternate interior angles?

Back

Angles that are on opposite sides of the transversal and inside the two parallel lines. They are equal in measure.

Front

What are alternate exterior angles?

Back

Angles that are on opposite sides of the transversal and outside the two parallel lines. They are equal in measure.

Front

What are same side interior angles?

Back

Angles that are on the same side of the transversal and inside the two parallel lines. They are supplementary, meaning they add up to 180 degrees.

Front

What are same side exterior angles?

Back

Angles that are on the same side of the transversal and outside the two parallel lines. They are also supplementary.

Front

If two parallel lines are cut by a transversal, what can be said about corresponding angles?

Back

Corresponding angles are equal.

Front

If two parallel lines are cut by a transversal, what can be said about alternate interior angles?

Back

Alternate interior angles are equal.

Front

If two parallel lines are cut by a transversal, what can be said about same side interior angles?

Back

Same side interior angles are supplementary.

Front

If two parallel lines are cut by a transversal, what can be said about alternate exterior angles?

Back

Alternate exterior angles are equal.

Front

What is the relationship between same side exterior angles?

Back

Same side exterior angles are supplementary.