Ray
a line. arrow on one end is called a ray and no arrows is called a line segment.
An arrow (→) has one line of symmetry. A double-headed arrow (↔) has two lines of symmetry and rotational symmetry if you want to claim it.
The line, itself, is a subset (though not a proper subset). A ray is a subset of a line with one end-point which extends in only one direction. A line segment is a subset of a line with two end points. A point is a subset of a line.
This question is very difficult to answer because of the ambiguity of what an "arrow" is. An arrow that you might fire from a bow is a three dimensional object and so is not a polygon. An arrow drawn as a straight line with a direction indicator at its head with or without tail feathers (for example <|----<< : oh, the graphics on this browser are so good, aren't they!) is not a polygon because the shaft is a line: a 1-dimensional object. An arrow such as the default one used to represent the cursor in Windows is a concave heptagon.
a line has a dot on each end and a ray only has one dot and an arrow, it keeps on going.
A line with an arrow on one end. Looks almost exactly like the symbol for a line segment, just with the arrow on one end.
Ray
A ray has one arrow on the right. A line segment has a dot on both sides. A line has a arrow on both sides.
No. the arrow end comprises more than one straight line segments.
Indeed it does, my good man. See, if just one end has an arrow, then it is a ray, and if neither end has an arrow, it is a line segment.
A ray is a line with a point on one end and an arrow at the other.
add one arrow at the end.
a line. arrow on one end is called a ray and no arrows is called a line segment.
A ray is a dot at one end of the line and a arrow at the other end.
A line with only one endpoint is a ray. One end has a point, and the other has an arrow to represent how the line continues forever.-------------------------->
A ray. Rays have a starting point and no ending. They go on forever.