Question

which is defined using the undefined terms point and line?
angle
circle
parallel lines
ray

Explanation:

An angle is formed by two rays with a common endpoint. A ray is defined as a part of a line that has one endpoint and extends infinitely in one direction. A ray is defined using a point (the endpoint) and a line (the part - of - line concept). A circle is defined in terms of a set of points at a fixed distance from a center point. Parallel lines are two lines in a plane that do not intersect. An angle is defined using rays which are based on points and lines.

Answer:

angle