# The Area of a Triangle Using a Determinant

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The area of a triangle with vertices at the coordinates , , and is the absolute value of .

Contributed by: George Beck (March 2011)

Open content licensed under CC BY-NC-SA

## Snapshots

## Details

For how to calculate a 3×3 determinant, see the first two related links.

## Permanent Citation

"The Area of a Triangle Using a Determinant"

http://demonstrations.wolfram.com/TheAreaOfATriangleUsingADeterminant/

Wolfram Demonstrations Project

Published: March 7 2011