3.1. Parallel and Skew Lines http://www.ck12.org
- ForXY, how many parallel lines would pass through pointD? Name this/these line(s).
Answers:
1.ZVandW B.Y DandV W
2.ZVandEA.
- One line,CD
Practice
- Which of the following is the best example of parallel lines?
a. Railroad Tracks
b. Lamp Post and a Sidewalk
c. Longitude on a Globe
d. Stonehenge (the stone structure in Scotland) - Which of the following is the best example of skew lines?
a. Roof of a Home
b. Northbound Freeway and an Eastbound Overpass
c. Longitude on a Globe
d. The Golden Gate Bridge
For 3-10, determine whether the statement is true or false.
- Ifp||qandq||r, thenp||r.
- Skew lines are never in the same plane.
- Skew lines can be perpendicular.
- Planes can be parallel.
- Parallel lines are never in the same plane.
- Skew lines never intersect.
- Skew lines can be in the same plane.
- Parallel lines can intersect.
- Come up with your own example of parallel lines in the real world.
- Come up with your own example of skew lines in the real world.
- What type of shapes do you know that have parallel line segments in them?
- What type of objects do you know that have skew line segments in them?
- If two lines segments are not in the same plane, are they skew?