Two lines are parallel if they have the same slope and do not intersect. Examples of parallel lines include railroad tracks, rows of crops, and the edges of a road. Perpendicular lines have slopes that are inverse reciprocals of each other and form a 90 degree angle. Examples are the grill of a truck, a telephone pole, and lines on a tennis court.

1. Parallel and Perpendicular
Lines
By:Steelie Priest

2. Parallel Lines
Two lines that have the same slope
A “special case” would be if the lines are
the same, those lines would be
coinciding lines.

3. Twin Towers

4. Rail Road Tracks

5. Rows of Crops

6. The Outside of the Road

7. Video On Youtube!!!
http://www.youtube.com/watch?
feature=player_detailpage&v=jr69LGZ
x72o

8. Perpendicular Lines
The slope of Perpendicular LInes are
inverse reciprocals of each other.
The “special case” would be if the two
lines do not form a right angle.

9. Grill of a Dodge Truck

10. A Telephone Pole

11. A Coach Calling a Timeout

12. Lines on a Tennis Court

13. Video On YouTube!!!
http://www.youtube.com/watch?
feature=player_detailpage&v=vnnwfcD
cNlY

14. Website Credits
perpendicular-line-800x800.jpg
wtcnight2.jpg
railroad-tracks-thumb8271007.jpg
awesome-roads-with-green-surroundings-7.jpg
trucktoys4less_1892_162029166.jpg
Telephone.Poles.Medium.jpg
120308_BKCvsTAM_Big12_cneal28.jpg
http://www.billstimson.com/images/Telephone.Poles.Medium.jpg
http://www.youtube.com/watch?
feature=player_detailpage&v=vnnwfcDcNlY