which undefined term is used to define an angle?\nline\nplane\npoint\nray

which undefined term is used to define an angle?\nline\nplane\npoint\nray
Answer
Brief Explanations:
An angle is defined as the union of two non - collinear rays with a common endpoint. Rays are used in the definition of an angle. Lines, planes, and points are not the key undefined terms for defining an angle.
Answer:
ray