Parrallel Lines

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

When two lines are parallel, what is the relationship between their slopes?

Back

The slopes of parallel lines are equal.

Tags

CCSS.8.EE.B.6

Front

What happens when a transversal intersects two parallel lines?

Back

It creates corresponding angles, alternate interior angles, and alternate exterior angles.

Tags

CCSS.8.G.A.5

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 are alternate interior angles?

Back

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

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 parallel lines.

Tags

CCSS.8.G.A.5

Front

What is the sum of the interior angles on the same side of a transversal when it intersects two parallel lines?

Back

The sum is supplementary, meaning they add up to 180 degrees.

Tags

CCSS.8.G.A.5

Front

If two angles are corresponding angles, what can we say about their measures?

Back

They are equal.

Tags

CCSS.8.G.A.5

Front

If two lines are cut by a transversal and the alternate interior angles are equal, what can we conclude about the lines?

Back

The lines are parallel.

Tags

CCSS.8.G.A.5

Front

What is a transversal?

Back

A line that intersects two or more lines in a plane.

Tags

CCSS.HSG.CO.A.1

CCSS.4.G.A.1