Distance formula

Formula

$d \,=\, \sqrt{{(x_{2}-x_{1})}^2+{(y_{2}-y_{1})}^2}$

The distance between any two points in a two dimensional space is equal to square root of sum of squares of differences of their coordinates.

Proof

Learn how to derive distance formula in geometric approach to find the distance between any two points in two dimensional Cartesian coordinate system.

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