straight line
a line
line
It is a straight line extending between two points on the circumference of a circle.
line
A straight angle has 180 degrees. It is an angle that has sides in opposite directions from its vertex. A straight angle will look like a straight line.
A line.
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.
A straight line of infinite length!
Line
A line
a line
parallel lines
It would be a horizontal straight line, extending without end in both directions.
A line
It would be a ray (one half of a line).In geometry "A set of points extending infinitely in one direction" is called a RAY.
The real numbers are often represented by the Number Line, a straight line extending (forever) in both, the positive and negative, directions.
By extending one's elbow, you can make a straight angle.