parallel line rules and review of angle relationships

Front

What is a parallel line?

Back

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

Front

What is a transversal?

Back

A line that intersects two or more lines.

Front

What type of angle is formed when two lines intersect?

Back

Vertical angles.

Front

What are complementary angles?

Back

Two angles that add up to 90 degrees.

Front

What are supplementary angles?

Back

Two angles that add up to 180 degrees.

Front

What are exterior angles?

Back

Angles on the outside of parallel lines.

Front

What are interior angles?

Back

Angles on the inside of parallel lines.

Front

What is the relationship between alternate interior angles when two parallel lines are cut by a transversal?

Back

They are equal.

Front

What is the relationship between corresponding angles when two parallel lines are cut by a transversal?

Back

They are equal.

Front

What is the relationship between same-side interior angles when two parallel lines are cut by a transversal?

Back

They are supplementary.