Parallel, perpendicular, skew lines

Front

What are parallel lines?

Back

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

Front

What are perpendicular lines?

Back

Lines that intersect at a right angle (90 degrees).

Front

What are skew lines?

Back

Lines that do not intersect and are not parallel, existing in different planes.

Front

What is the definition of complementary angles?

Back

Two angles whose sum is 90 degrees.

Front

What is the definition of supplementary angles?

Back

Two angles whose sum is 180 degrees.

Front

What are vertical angles?

Back

Angles that are opposite each other when two lines intersect.

Front

What are adjacent angles?

Back

Angles that share a common side and vertex.

Front

If two lines are parallel, what can be said about the angles formed when a transversal crosses them?

Back

The corresponding angles are equal.

Front

If two lines are perpendicular, what is the relationship between the angles formed?

Back

The angles formed are right angles (90 degrees).

Front

Can skew lines be parallel?

Back

No, skew lines are not parallel as they do not lie in the same plane.