1. Parallel lines,
Perpendicular lines,
and line segments
By: Mr. Dunkleberger
Mechanicsville Elementary School

2. What is a line?
• Line- a straight path in a plane that goes
on forever in opposite directions
Example:
• line AB or line BA

3. What is a point?
• point
• An exact location in space, usually
represented by a dot
Example:
point A

4. What is a line segment?
• line segment
• A part of a line that includes two points,
called endpoints, and all of the points
between them
Example:
• line segment AB or line segment BA

5. What is a ray?
• ray
• A part of a line, with one endpoint, that
continues without end in one direction
Example:
ray CD

6. What is a parallel line?
• parallel lines
• Lines in a plane that never intersect
Example:

7. What is a perpendicular line?
• perpendicular lines
• Two lines that intersect to form four right
angles
Example:

9. ray

10. .
point

11. line segment

12. angle

13. line

14. right angle

15. obtuse angle

16. acute angle

17. parallel lines

18. intersecting
lines

19. perpendicular

20. Is the following shape a parallel line, a
perpendicular line, or an intersecting line?

21. Is the following shape a parallel line, a
perpendicular line, or an intersecting line?

22. Is the following shape a parallel line, a
perpendicular line, or an intersecting line?

23. Is the following shape a parallel line, a
perpendicular line, or an intersecting line?

24. Is the following shape a parallel line, a
perpendicular line, or an intersecting line?

25. Is the following shape a parallel line, a
perpendicular line, or an intersecting line?

26. Is the following shape a parallel line, a
perpendicular line, or an intersecting line?

27. Is the following shape a parallel line, a
perpendicular line, or an intersecting line?

28. Is the following a point, a line, a line
segment, or a ray?

29. Is the following a point, a line, a line
segment, or a ray?

30. Is the following a point, a line, a line
segment, or a ray?

31. Is the following a point, a line, a line
segment, or a ray?

32. Is the following a point, a line, a line
segment, or a ray?

33. Is the following a point, a line, a line
segment, or a ray?

34. Is the following a point, a line, a line
segment, or a ray?