Distance Formula - Concept

Concept (1)

Using what we know about the Pythagorean theorem, we are able to derive the distance formula which is used to find the straight distance between two points in a coordinate plane. The distance formula is a standard formula that allows us to plug a set of coordinates into the formula and easily calculate the distance between the two.

Sample Problems (2)

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Distance Formula - Problem 1

Problem 1

How to find the distance between two points on the coordinate plane using the distance formula.
Distance Formula - Problem 2

Problem 2

How to identify a polygon (a triangle in this problem) as isosceles, equilateral, or scalene using the distance formula.