Esfera geodésica por José Luis Rodríguez | Jul 23, 2018 | Bachillerato, Universidad Marking the thirds of edges of the icosahedron (can use the Divisor tool). After that we mark the middle point in each triangle of the icosahedron. Then we project the vertices on a sphere. For that use the compass tool. and finish to join the vertices of the dome. Recuperado de Facebook.