Assertion: icosahedron's edge | /r/CapableOf | pentagon faces with edge length
Facets:
Source sentences:
text: 120 edges, 12 (blue) pentagon faces (with edge length el ≈ 0.28 nm), 20 equilateral triangular faces (red with edge length 4 ˣ (2/3)½ ˣ el, water molecules at vertices and on each edge) and 30 (blue and red) rectangular faces (with edge lengths el (blue) and 4 ˣ (2/3)½ ˣ el (red)).