Respuesta :
An angle is two rays with a common endpoint, called the vertex. The rays are the sides of the angle.
In the angle ∠XYZ, the vertex is Y, and the sides are rays [tex]\overrightarrow{YX}[/tex] and [tex]\overrightarrow{YZ}.[/tex]
You can name angles by three letters, X on one side, the vertex Y, and Z on the other side: ∠XYZ and ∠ZYX are both names for this angle. Or an angle can be named by just its vertex, for example, ∠Y, as long as it is the only angle with that vertex.
Therefore, the correct option is B

Answer:
The correct answer option is B. ∠XYZ.
Step-by-step explanation:
In geometrical terms, an angle is the figure which is formed by two rays which are called the sides of the angle.
Here, for the described situation for a triangle XYZ, Y is the vertex with the side rays or sides of the angle YX and YZ.
Considering the sides of the angle, you can name the angle as either ∠XYZ or ∠ZYX or simple ∠Y without mentioning any side rays.