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, often in different planes.

Front

Name a property of parallel lines.

Back

They have the same slope in a coordinate plane.

Front

How can you identify perpendicular lines in a graph?

Back

They have slopes that are negative reciprocals of each other.

Front

What is the relationship between intersecting lines?

Back

They cross each other at one or more points.

Front

If line A is parallel to line B, what can be said about their angles when intersected by a transversal?

Back

Corresponding angles are equal.

Front

What is a transversal line?

Back

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

Front

Can two lines be both parallel and perpendicular?

Back

No, two lines cannot be both parallel and perpendicular at the same time.

Front

What is the angle formed by perpendicular lines?

Back

90 degrees.