Geometric Analysis: Determining Perpendicular Line Relationships

Question

Which lines are perpendicular to each other?

00:00 Which of the lines are perpendicular to each other?

00:02 Perpendicular lines create a right angle at their intersection point

00:05 In this example, the angle between the lines is unknown

00:08 In this example, the lines never intersect and therefore are parallel

00:14 In this example, the lines form a right angle therefore they are perpendicular

00:21 And this is the solution to the question

Perpendicular lines are lines that form a right angle of 90 degrees between them.

The only drawing where the lines form a right angle of 90 degrees between them is drawing A.