en.wikipedia.org/wiki/Distance

Distance is a numerical description of how far apart objects are. In physics or everyday usage, .... theorem, which does not hold in Non-Euclidean geometries. This distance formula can also be expanded into the arc-length formula.

www.mathwarehouse.com/algebra/distance_formula

The distance formula is derived from the Pythagorean theorem. To find the distance between two points (x1,y1) and (x2,y2), all that you need to do is use the ...

www.mathwarehouse.com/calculators/distance-formula-calculator.php

Distance Formula Calculator. Enter any number(even fractions) and our calculator will find the distance between the points and show all work and steps.

www.purplemath.com/modules/distform.htm

Explains the Distance Formula, how the Distance Formula is derived from the Pythagorean Theorem, and how to use the Formula.

www.khanacademy.org/math/basic-geo/basic-geometry-pythagorean-theorem/pythagorean-theorem-distance/e/distance_formula

Use the Pythagorean theorem to find the distance between two points on the ... Pythagorean theorem and distance between points ... Distance formula review.

www.khanacademy.org/math/basic-geo/basic-geometry-pythagorean-theorem/pythagorean-theorem-distance/v/distance-formula

Learn how to find the distance between two points by using the distance formula, which is an application of the Pythagorean theorem.

www.teacherschoice.com.au/maths_library/analytical%20geometry/alg_15.htm

This topic is part of the TCS FREE high school mathematics 'How-to Library', and will help you to use the distance formula to find distances between (x,y) points.