Finding angles in parallel lines with a transversal

Front

What are parallel lines?

Back

Parallel lines are lines in a plane that never meet or intersect, no matter how far they are extended.

Tags

CCSS.4.G.A.1

CCSS.HSG.CO.A.1

Front

What is a transversal?

Back

A transversal is a line that crosses at least two other lines in the same plane.

Front

What are corresponding angles?

Back

Corresponding angles are pairs of angles that are in similar positions at each intersection where a transversal crosses two lines.

Tags

CCSS.8.G.A.5

Front

What is the relationship between corresponding angles when two lines are parallel?

Back

When two lines are parallel, corresponding angles are equal.

Tags

CCSS.8.G.A.5

Front

What are alternate interior angles?

Back

Alternate interior angles are pairs of 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 when two lines are parallel?

Back

When two lines are parallel, alternate interior angles are equal.

Tags

CCSS.8.G.A.5

Front

What are alternate exterior angles?

Back

Alternate exterior angles are pairs of 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 when two lines are parallel?

Back

When two lines are parallel, alternate exterior angles are equal.

Tags

CCSS.8.G.A.5

Front

What are consecutive interior angles?

Back

Consecutive interior angles are pairs of 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 consecutive interior angles when two lines are parallel?

Back

When two lines are parallel, consecutive interior angles are supplementary (they add up to 180 degrees).

Tags

CCSS.8.G.A.5