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It is called as a plain.
A ray.
One. Because a ray starts with a fixed point and endlessly extends on the opposite side. Thus there is only one endpoint.
A line.
No, a pentagon has exactly 5 lines. A line is defined as a straight path that extends indefinitely in both directions, and a pentagon has 5 straight sides or edges.
It is called as a plain.
Congruent line segments
A ray.
yes
A line is a straight path that extends infinitely or endlessly in opposite directions. A straight path that joins two points is called a line segment.
There are infinitely many points on a line, as a line extends endlessly in both directions. Each point on a line can be uniquely identified by its position on the line using the coordinates of the point.
A line.
One. Because a ray starts with a fixed point and endlessly extends on the opposite side. Thus there is only one endpoint.
The answer to this riddle is "a hole." As you pull on both sides of a hole, you are essentially making it smaller by stretching the material around it.
Points do not extend, lines do.
the professor droned on endlessly
straight line