Right Angle Analysis: Examining Perpendicular Lines in a Complex Figure

Question

Given the figure in which all sides are perpendicular to each other, is there any angle in the drawing that is not equal to 90 degrees?

00:00 Is there a non-right angle in the drawing?

00:03 All sides are perpendicular to each other according to the given data

00:06 Let's mark all our angles

00:13 All our angles are right angles

00:17 And this is the solution to the question

Let's remember that perpendicular sides create a 90-degree angle between them.

We will draw a 90-degree angle at each intersection of the sides as follows:

From the figure, we notice that there is not a single angle that is not right.

False