Assertion: icosahedron | /r/HasProperty | 20 triangular faces
Facets:
Source sentences:
text: The Platonic solids include the tetrahedron (4 triangular faces), cube or hexahedron (6 square faces), octahedron (8 triangular faces), dodecahedron (12 pentagonal faces), and the icosahedron (20 triangular faces).