the.com/icosahedron
twenty triangles conspiring to fake a sphere with perfect, suspicious symmetry
means A three-dimensional solid with twenty flat triangular faces, thirty edges, and twelve vertices — one of the five Platonic solids.
from From Greek 'eikosi' (twenty) plus 'hedra' (seat, base, or face), the same '-hedron' that seats every polyhedron. The Greeks were obsessed with these shapes — Plato linked the icosahedron to water, one of his four elements — and the word came into English through Latin in the 1500s, carrying its tidy Greek arithmetic intact: literally a 'twenty-faced thing.'
- face count
- twenty equilateral triangles, thirty edges, twelve vertices
- dice life
- the classic d20 ruling tabletop fates everywhere
- virus shape
- many viruses pack their genome in icosahedral shells
- platonic club
- one of only five perfect Platonic solids
- dual partner
- its dual is the twelve-faced dodecahedron
platonic solids collection — one of five regular polyhedra with 20 equilateral triangle faces, studied since ancient greece
icosahedral virus structure — poliovirus and many bacteriophages have icosahedral symmetry with 20-faced protein shells
d20 die — standard 20-sided die used in dungeons and dragons since 1974