Angle notation is the way of naming them to know which angle we are referring to. When reading the data, it is customary to mark the given angles and the angle that needs to be found. In this way, we can obtain a better visual image that allows us to find the solution in the most efficient way possible. When we want to demonstrate something or express the angles verbally, we must designate them in a correct and clear manner. Besides, correct notation is important and indispensable to avoid errors.

We are looking for an answer where the letter B, which represents the angle in the drawing, is in the middle.

Therefore, answer A is correct since the letter B is in the middle:

$ABC$

Answer

$∢\text{ABC}$

Exercise #2

Name the angle of the figure:

Video Solution

Step-by-Step Solution

We are looking for an answer where the letter D, which represents the angle in the drawing, is in the middle.

Therefore, answer B is correct since the letter D is in the middle:

$BDK$

Answer

$∢\text{BDK}$

Exercise #3

In which of the figures is the angle EBCmarked?

Video Solution

Step-by-Step Solution

We will look for the diagram where the colored angle is angle B since it is the middle one. We can see that in answer A, angle B is the colored one, and therefore this is the correct answer.

Answer

Exercise #4

Is it possible to mark all angles with a single letter?

Video Solution

Step-by-Step Solution

The answer is no because the two angles that are divided within angle BAD are: