CK-12 Geometry-Concepts

http://www.ck12.org Chapter 3. Parallel and Perpendicular Lines

Guided Practice

Use the figure below to answer the questions. The two pentagons are parallel and all of the rectangular sides are
perpendicular to both of them.

1. Find two pairs of skew lines.


2. List a pair of parallel lines.


3. ForXY, how many parallel lines would pass through pointD? Name this/these line(s).

Answers:

1.ZVandW B.Y DandV W

2.ZVandEA.

3. One line,CD

Interactive Practice

MEDIA

Click image to the left for use the URL below.

URL: http://www.ck12.org/flx/render/embeddedobject/113005

Explore More

1. 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)


2. Which of the following is the best example of skew lines?
   a. Roof of a Home
   b. Northbound Freeway and an Eastbound Overpass