Hey there!
Four ways you can name an angle are:
- by the vertex
-by the letters making the angles (in any order as long as the vertex is in the middle)
- by the angle number
The first way to name it would be by the vertex. Because the vertex of the angle is point R, you would name this angle ∠R.
The second way would be by the letters, which can be in any order as long as the vertex letter is in the center. These include the names ∠QRS and ∠SRQ.
The third way would be naming the angle by the number given. In the diagram, notice that there is a small 5 in the angle. With this number, you can name the angle, ∠5.
Therefore, your names for the angles include ∠R, ∠QRS, ∠SRQ, and ∠5.
Hope this helps and have a nice day! :)
