Question

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Answer 1

Answer:

9 (C) O is the answer

10 (B) DE and EF are two arms

Answer 2

Answer:

9.(C) O

10.(A) ED and EF

Step-by-step explanation:

9. Vertex:The common end point at which the two rays meet to form an angle is called the vertex.

10.Arm of an angle :The two rays joining to form an angle are called arms of an angle.

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