Properties of Parallel Lines

Front

What are parallel lines?

Back

Two lines that run in the same direction and will never intersect.

Front

What is the definition of alternate exterior angles?

Back

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

Front

What is the definition of linear pairs?

Back

A pair of adjacent angles formed when two lines intersect, which are supplementary.

Front

What are same side interior angles?

Back

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

Front

What is the relationship between alternate interior angles?

Back

They are equal when two parallel lines are cut by a transversal.

Front

What is the relationship between corresponding angles?

Back

They are equal when two parallel lines are cut by a transversal.

Front

What is the sum of the angles in a linear pair?

Back

180 degrees.

Front

What is the definition of a transversal?

Back

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

Front

What is the relationship between same side exterior angles?

Back

They are supplementary when two parallel lines are cut by a transversal.

Front

What is the definition of alternate interior angles?

Back

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