Parallel Lines Cut by Transversal

Front

What are parallel lines?

Back

Lines in a plane that never meet and are always the same distance apart.

Tags

CCSS.HSG.CO.A.1

Front

What is a transversal?

Back

A line that crosses at least two other lines.

Front

What are corresponding angles?

Back

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

Tags

CCSS.8.G.A.5

Front

What is the relationship between corresponding angles?

Back

They are congruent (equal in measure).

Tags

CCSS.8.G.A.5

Front

What are alternate interior angles?

Back

Angles that are on opposite sides of the transversal and inside the two lines.

Tags

CCSS.8.G.A.5

Front

What is the relationship between alternate interior angles?

Back

They are congruent when the lines are parallel.

Tags

CCSS.8.G.A.5

Front

What are alternate exterior angles?

Back

Angles that are on opposite sides of the transversal and outside the two lines.

Tags

CCSS.8.G.A.5

Front

What is the relationship between alternate exterior angles?

Back

They are congruent when the lines are parallel.

Tags

CCSS.8.G.A.5

Front

What are same side interior angles?

Back

Angles that are on the same side of the transversal and inside the two lines.

Tags

CCSS.8.G.A.5

Front

What is the relationship between same side interior angles?

Back

They are supplementary (add up to 180 degrees) when the lines are parallel.

Tags

CCSS.8.G.A.5