〈 Berger | Dillon 〉 on Twitter: "But is this that generalization? (no, I didn’t click on the link..)… "

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Take any tetrahedron, and for each face compute its perimeter P, and the solid angle Ω it subtends as seen from the opposite vertex. Daniil Rudenko and @robinhouston have found a linear relationship between 1/P and cot(Ω/2). https://mathoverflow.net/questions/336464/a-curious-relation-between-angles-and-lengths-of-edges-of-a-tetrahedron/336777 …pic.twitter.com/6a8q1uzCrX

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