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Add the tetrahedron radius ratio problem

Vectornaut 2025-05-27 23:27:22 +00:00
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Test-problems.md

@ -25,6 +25,12 @@ for some positive $r$, $s$. Show that $A$, $B$, $C$, $D$, $E$, $F$ must be the v
As of pull request #84, you can place six points in a rough planar hexagon, impose the distance constraints for some chosen $r$ and $s$, and see that the assembly becomes an equiangular planar hexagon, which seems to be rigid when you nudge the points.
### Tetrahedron radius ratio
#### Statement
Find the ratio between the inradius and the circumradius of a regular tetrahedron.
### Irisawa's hexlet
#### Source