Explanation:
line ⇒ a straight arrangement of points extending without end in opposite directions.
line segment ⇒ part of a line that consists of two points called endpoints and all of the points between those endpoints.
ray ⇒ part of a line that consists of an endpoint and all points on the line that extends in one direction.
point ⇒ has no dimension; is one of the undefined terms of geometry. Some may also refer to a point as a dot or dots on a line.
