Question

Angle
D
Vertex D
Arms
E
Drain​

Answer 1

Answer:

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Answer 2

Answer:

Arms: The two rays joining to form an angle are called arms of an angle. Here, OA and OB are the arms of the ∠AOB. Vertex: The common end point at which the two rays meet to form an angle is called the vertex. Here, the point O is the vertex of ∠AOB.