The point at the beginning of a ray is called the "endpoint." A ray is a part of a line that starts at this endpoint and extends infinitely in one direction. The endpoint is crucial as it defines where the ray begins, distinguishing it from a line segment, which has two endpoints.
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A ray has a beginning but no endpoint.
A ray does have a definite beginning, it's point, but it goes on forever in the other direction, which is symbolized by an arrow.
The endpoint.
A ray has only one end point.
No A line segment has a beginning and an end, but a line has no beginning or end. A ray has a beginning but no end.