Unit 2: Parallel Lines, Planes, & Skew Lines P3

Front

What are parallel lines?

Back

Two lines that never cross.

Front

What are skew lines?

Back

Lines that do not intersect and are not parallel.

Front

What are perpendicular lines?

Back

Lines that intersect at a 90-degree angle.

Front

Name a line parallel to line AD.

Back

Line EH.

Front

Name a line skew to line AD.

Back

Line CG.

Front

Name a line skew to line FG.

Back

Line DC.

Front

What is the relationship between parallel lines and planes?

Back

Parallel lines lie in the same plane and never intersect.

Front

What is the relationship between skew lines and planes?

Back

Skew lines do not lie in the same plane.

Front

How can you identify perpendicular lines in a diagram?

Back

Look for a right angle (90 degrees) where the lines intersect.

Front

What is an example of parallel lines in real life?

Back

Railroad tracks.