vertex of an angle
Definition of Vertex of an Angle
- A point at which the arms (sides) of an angle meet is known as the vertex of the angle.
More about Vertex of an Angle
- Measuring of angle is done about the vertex.
Example of Vertex of an Angle
Solved Example on Vertex of an Angle
Which of the following figures has D as its vertex?
A. Figure 4
B. Figure 3
C. Figure 2
D. Figure 1
Correct Answer: C
Step 1: The point from which the two rays originate is the vertex of an angle.
Step 2: Here, the rays DE and DF originate from the point D.
Step 3: So, D is the vertex.
Step 4: Therefore, Figure 2 has an angle D as its vertex.
Related Terms for Vertex of an Angle