The mean triangle area is the average area of a triangle in triangle picking within some given shape. As summarized in the following table, it is possible to compute the mean triangle area in closed form for triangle picking for some simple shapes.

# Mean Triangle Area

## See also

Mean Line Segment Length, Mean Tetrahedron Volume, Polygon Triangle Picking, Triangle Picking, Triangle Triangle Picking## Explore with Wolfram|Alpha

## Cite this as:

Weisstein, Eric W. "Mean Triangle Area."
From *MathWorld*--A Wolfram Web Resource. https://mathworld.wolfram.com/MeanTriangleArea.html