# Worksheet: Relations between Straight Lines, Line Segments, and Rays

In this worksheet, we will practice describing the relations between straight lines, lines segments, and rays as parallel, intersecting, or perpendicular.

Q1:

Which of the following correctly defines perpendicular lines?

• ATwo lines are said to be perpendicular if they meet at an obtuse 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 right angles.
• ETwo lines are said to be perpendicular if they meet at a reflex angle.

Q2:

Determine the colours of the lines that are perpendicular to each other.

• Ablack and yellow
• Bblue and yellow
• Cblue and black

Q3:

Which are the parallel lines in the figure?

• A and
• B and
• C and

Q4:

Use or to fill in the gap: .

• A
• B

Q5:

Is parallel or perpendicular to ?

• A perpendicular
• B parallel

Q6:

Is parallel or perpendicular to ?

• A parallel
• B perpendicular

Q7:

State whether the following is true or false: Any angle formed from the intersection of two perpendicular straight lines is a right angle.

• A true
• B false

Q8:

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:

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