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DistCalc
Distance formula: √((x₂−x₁)² + (y₂−y₁)²).
The distance formula is just the Pythagorean theorem applied to coordinates — the horizontal and vertical gaps between two points form the legs of a right triangle, and the straight-line distance is its hypotenuse.
Mapping applications, video game physics, and any calculation of 'as the crow flies' distance between two locations on a grid or coordinate plane use exactly this formula.
Distance
5
d = √((x₂-x₁)² + (y₂-y₁)²)
What you entered
Δx (horizontal distance)
3 − 0= 3Δy (vertical distance)
4 − 0= 4Distance
√(3² + 4²)= 5Result
Distance: 5
The distance between (0, 0) and (3, 4) is 5 units.