Identify Parallel, Perpendicular, and Skew Lines and Planes

Identify a pair of parallel lines.

• Lines AB and CD

• Lines AB and BD

• Lines AC and BA

• LInes CD and BD

Identify a pair of pependicular lines.

• Lines AB and CD

• Lines AB and BD

• Lines AC and BD

• LInes BC and BD

Identify a pair of parallel planes.

• Planes A and B

• Planes C and D

• Planes F and G

• Planes E and B

Is line e perpendicular to line g?

• Yes, because line e is perpendicular to line f, and lines f and g are parallel.

• No, because while line e is perpendicular to line f, we don't have enough information to know lines f and g are parallel.

Which of the following statements is true based on the image?

• Segments AD and CF are parallel to Segment BE.

• Segment BC and EF are skew.

• Segments AB and DF are skew.

• Segments DE and FE are parallel.

• Plane DEF and Plane ABC are parallel planes.

Which of the following statements is true based on the image?

• Segments AD and CF are parallel to Segment BE.

• Segment BC and EF are skew.

• Segments AB and DF are skew.

• Segments DE and FE are parallel.

• Plane DEF and Plane ABC are parallel planes.

Lines that meet at right angles.

• Parallel Lines

• Perpendicular Lines

• Intersecting Lines

Lines in the SAME plane that will never meet.

• Perpendicular Lines

• Parallel Lines

• Skew Lines

Lines in different planes that will never meet.

• Parallel Lines

• Intersecting Lines

• Skew Lines

What is special about Parallel Lines?

• They intersect at a right angle

• They are red

• They never touch

• They have numbers