Understanding Perpendicular Lines

The video tutorial explains the concept of perpendicular lines, which are two lines that intersect to form right angles. It demonstrates how to identify perpendicular lines on a grid and introduces the symbol used to denote perpendicularity. An example is provided using lines MN and OP to illustrate the concept.

What type of angle is formed when two lines are perpendicular?

• Acute angle

• Straight angle

• Obtuse angle

• Right angle

Which of the following is NOT true about perpendicular lines?

• They always intersect at 90 degrees

• They can form any angle

• They are represented with a specific symbol

• They form a right angle where they meet

How can you tell if two lines on a grid are not perpendicular?

• They do not form a right angle

• They form an obtuse angle

• They form an acute angle

• They are parallel

What symbol is used to show that two lines are perpendicular?

• ||

• ∠

• ∥

• ⊥

If line MN is perpendicular to line OP, how can this be written?

• MN || OP

• MN ∠ OP

• MN ⊥ OP

• MN ∥ OP