Distance Formula

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Examples, videos, worksheets, and solutions to help Grade 8 students learn the distance formula that uses the Pythagorean Theorem.

What is the Distance Formula?
The distance between two points (x1, y1) and (x2, y2) is given by the formula:

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

The following diagram shows how to use the distance formula. Scroll down the page for more examples and solutions.
Distance Formula

How the distance formula comes from the Pythagorean Theorem?
Example of finding the distance between two points.

Distance Formula Between Two Points

How to find the distance on a line using the distance formula?

Brief explanation of distance formula and an example

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