Counting Perpendicular Lines: Geometric Diagram Analysis Exercise

Question

How many pairs of perpendicular lines are there in the diagram?

00:00 How many perpendiculars are there in the drawing?

00:03 A perpendicular creates a right angle at the intersection point between the lines

00:07 Let's mark and count all the right angles

00:12 And this is the solution to the question

Remember that perpendicular lines are vertical lines that form a right angle of 90 degrees between them.

The right angle we have in the drawing is: ABC

The lines that form the angle ABC are: AB+BC

Since we have one marked angle in the triangle, we must have a pair of perpendicular lines.