# Lesson Worksheet: Parallel, Perpendicular, and Intersecting Lines Mathematics • 4th Grade

In this worksheet, we will practice classifying pairs of lines, rays, or line segments as parallel, perpendicular, or intersecting and using the correct notation to denote the relationship between lines.

**Q1: **

Which of the following correctly defines perpendicular lines?

- ATwo lines are said to be perpendicular if they meet at a reflex angle.
- BTwo lines are said to be perpendicular if they never intersect however far they are extended.
- CTwo lines are said to be perpendicular if they meet at an acute angle.
- DTwo lines are said to be perpendicular if they meet at an obtuse angle.
- ETwo lines are said to be perpendicular if they meet at right angles.

**Q3: **

Use or to fill in the gap: .

- A
- B

**Q5: **

Is parallel or perpendicular to ?

- Aparallel
- Bperpendicular

**Q6: **

True or False: Any angle formed from the intersection of two perpendicular straight lines is a right angle.

- ATrue
- BFalse

**Q7: **

The blue car is driving on a road that is the road that the yellow car is driving on.

- Aintersecting
- Bperpendicular to
- Cparallel to

**Q9: **

In the following figure, what is the relation between and ?

- AParallel
- Bperpendicular
- CNeither parallel nor perpendicular

**Q10: **

Which of the following segments is perpendicular to ?

- A
- B
- C
- D