Vertex of an Angle

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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.

Video Examples: Vertex of an Angle

Examples of Vertex of an Angle

Solved Example on Vertex of an Angle

Ques: 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.

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