Assertion: icosahedron's face | /r/HasProperty | any polyhedron
Facets:
value: with twelve flat faces
type: OTHER
Source sentences:
text: " + ἕδρα hédra "base", "seat" or "face") is any polyhedron with twelve flat faces.
text: Each face is a polygon (a flat shape with straight sides).
text: " + ἕδρα hédra "base", "seat" or "face") is any polyhedron with twelve flat faces.