Parallel Lines cut by a Transversal

Front

What are Parallel Lines?

Back

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

Front

What is a Transversal?

Back

A line that intersects two or more lines at different points.

Front

Define Alternate Interior Angles.

Back

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

Front

Define Alternate Exterior Angles.

Back

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

Front

Define Corresponding Angles.

Back

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

Front

Define Vertical Angles.

Back

Angles that are opposite each other when two lines intersect.

Front

What is the relationship between Alternate Interior Angles when lines are parallel?

Back

They are equal.

Front

What is the relationship between Corresponding Angles when lines are parallel?

Back

They are equal.

Front

What is the relationship between Alternate Exterior Angles when lines are parallel?

Back

They are equal.

Front

What is the relationship between Consecutive Interior Angles when lines are parallel?

Back

They are supplementary (add up to 180°).