In Euclidean geometry, trilinear polarity is a correspondence defined using a special case of perspective triangles. It is between the points (poles) in the plane of a triangle not lying on the sides of the triangle and lines (polars) in the plane of the triangle not passing through the vertices of the triangle.
In Euclidean geometry, trilinear polarity is a correspondence defined using a special case of perspective triangles. It is between the points (poles) in the plane of a triangle not lying on the sides of the triangle and lines (polars) in the plane of the triangle not passing through the vertices of the triangle.
Source: Wikipedia "Trilinear polarity" · CC BY-SA 4.0
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