2D line.
line segment
YES!!! It is the shortest distance between two points.
Line segment.
The universe.
Displacement is the shortest distance between the starting and ending points of an object's motion, while distance is the total length of the path traveled by the object.
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.
Distance is the total length traveled by an object, while displacement is the shortest distance between the starting and ending points, taking into account direction.
parabola
Circle