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Strangely enough, there are many definitions!
In the Euclidean plane, the distance between any two points is the length of the straight line joining those points. This is the concept of distance most commonly used.
However, day-to-day distances are often measured, not "as the crow flies", but along established roads or routes. Here, the distance between two points is the sum of point-to-point distances of straight line segments. An interesting variation is the metric variously known as Minkovski, Manhattan or Taxicab metric. Here the idea is that the distance between two points is the sum of their North-South separation and their East-West separation. See link for more.
In three dimensional space, such as on the surface of the earth, distance is measured not along a straight line but along the arc of the appropriate great circle (see link for more).
There is a whole branch of mathematics - metric spaces - which is the study of spaces with different metrics (or ways of measuring distance) defined for them.
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EzraDistance is the measurement of how far apart two points or objects are from each other. It is typically measured in units such as meters, kilometers, or miles. Distance can be calculated by determining the length of a path between two points, or by using mathematical formulas in different contexts.
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What statement describe the physical property of density?
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What term is used to describe the idea that increasing distances between places tends to reduce interactions among them?
The term commonly used to describe this idea is "distance decay." It refers to the decrease in the level of interaction or communication between places as the physical distance between them increases.
What unit would you use to describe the distance between the Earth and Neptune?
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To describe velocity you need to know?
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