YES!!! It is the shortest distance between two points.
The universe.
line
The metric of a geometric space is defined as the distance between two points.
Circle
2D line.
YES!!! It is the shortest distance between two points.
Line segment.
The universe.
line
The shortest distance between any two points is called displacement.
Points are the only such objects.
The metric of a geometric space is defined as the distance between two points.
parabola
Circle
line segment
A Straight Line is always the shortest distance between two points.