paulohscwb@gmail.com
© 2025 Paulo Henrique Siqueira
Sommerville tetrahedron ST4
Tetraedro de Sommerville ST4
faces
edges
vertices
compound
edge sizes:
$\mathsf{ \sqrt{5} \over{2} }$
,
$\mathsf{ \sqrt{3} }$
,
$\mathsf{ {2} }$
.