Perpendicular Lines

How many degrees are in a right angle?

• 180

• 90

• 60

• 45

What are lines that cross or meet to form a right angle?

• line segments

• parallel lines

• perpendicular lines

• ray

What has an exact 90 degree angle?

• Right Angle

• Center Mark

• Ray

• Parallel lines

What kind of lines are these?

• Parallel lines

• Intersecting lines

• Straight lines

• Perpendicular lines

• A

• B

• C

• D

Which of the following lines are perpendicular?

• Lines that run across each other

• Lines that never meet

• Lines that intersect at a 90-degree angle

• Lines that are parallel

Answer explanation

Perpendicular lines intersect at a 90-degree angle, making them the correct choice in this scenario.

Which figure shows a set of perpendicular lines?

• Figure 1

• Figure 2

• Figure 3

• Figure 4

If two lines are perpendicular, how do they interact?

• They run alongside each other

• They do not touch

• They intersect to form right angles

• They curve away from each other

How can you draw perpendicular lines?

• By drawing two lines that never touch

• By drawing two lines that form a right angle where they meet

• By drawing two lines parallel to each other

• By drawing two lines that curve

What kind of intersecting lines are these?

• Parallel Lines

• Perpendicular Lines

• adjacent

• opposite