Distance between two points

The distance between two points is a numerical value representing the length of the shortest path or “as-the-crow-flies” distance between those two points in a geometric space. This distance is commonly measured in various units such as meters, kilometres, miles, etc., depending on the context and the units of measurement being used.

In a two-dimensional (2D) plane, the distance between two points (x1​,y1​) and (x2​,y2​) can be calculated using the Pythagorean theorem or the distance formula:

Distance \( d=\sqrt{\left(x_2-x_1\right)^2+\left(y_2-y_1\right)^2}\)

Where:

• • $d$ represents the distance between the two points.
  • (x1​,y1​) are the coordinates of the first point.
  • (x2​,y2​) are the coordinates of the second point.