Assertion: icosahedron's polyhedron | /r/MadeOf | 12 pentagonal faces
Facets:
Source sentences:
text: The dual of the rhombic triacontahedron is the icosi-dodecahedron, Archimedean polyhedron consisting of 20 triangular and 12 pentagonal faces, orthogonal to 3-fold and 5-fold axes, respectively, whereas 2-fold axes pass through the 30 vertices.