Assertion: icosahedron's polyhedron | /r/HasProperty | regular icosahedron
Facets:
Source sentences:
text: The dual polyhedron is the regular icosahedron {3, 5}, having five equilateral triangles around each vertex.
text: This is the fifth regular polyhedron predicted by our argument, the regular dodecahedron.
text: The dual polyhedron is the regular icosahedron {3, 5}, having five equilateral triangles around each vertex.