Problem
Why the electron would have a triangular geometrical interpretation?
Because it has, as a model, the equilateral triangle of the mathematical group G3 which is the set E of the 6 permutations of 3 objects which, in mathematics, are 3 letters: given {a, b, c}.
This triangle, geometrical interpretation of G3, allows to visualize {a, b, c}, the set of its 3 tops, its center O is the point of intersection of its mediating.
a,b,c (image of E by coincidence),
a,c,b (image of E by the exchange of b and c),
c,b,a (image of E by the exchange of a and c),
b,a,c (image of E by the exchange of a and b),
b,c,a (image of E by a→b→c→a)
c,a,b (image of E by a→c→b→a).
The 3 objects of the electron, images of a, b, c, would be the 3 charges of color: red, yellow, bleue* of chromodynamic quantum, their 6 permutations are represented on 6 triangles.
Then, be carefull. Before continuing, it's better to know that, following, the G3 group tries to justify the concept of a tricolour electron, currently foreign for official science.
* We preferred the colors of the painters to those, less known, of physics.