English: The nine points and twelve lines of the
Hesse configuration. Because the configuration is not realizable in the Euclidean plane, four of its lines (the four broken diagonals of the 3×3 array of points) are drawn as curves.
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{{Information |Description ={{en|1=The nine points and twelve lines of the
Hesse configuration. Because the configuration is not realizable in the Euclidean plane, four of its lines (the four broken diagonals of the 3&tim...
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