2006-10-15 23:55:47 · 7 answers · asked by antonsmacinery 1 in Science & Mathematics ➔ Mathematics
An icosahedron /ˌaɪ.kəʊ.sə.ˈhi.dɹən/ noun (plural: -drons, -dra /-dɹə/ ) is a polyhedron having 20 faces, but usually a regular icosahedron is meant, which has faces which are equilateral triangles.
2006-10-16 00:00:19 · answer #1 · answered by raj 7 · 0⤊ 0⤋
An Icosahedron has 12 vertices, 30 edges and 20 faces. Each
face is a triangle.
A regular Icosahedron has these same characteristics plus
the fact that all of its' faces are equilateral triangles.
2006-10-16 04:03:36 · answer #2 · answered by michaell 6 · 0⤊ 0⤋
Icosahedron has 20 triangular faces, 12 edges and 12 vertices
2006-10-16 01:53:15 · answer #3 · answered by optimistic 1 · 0⤊ 0⤋
Hi,
Here are the elements of the icosahedron.
Vertices = 12
Faces = 20
Edges = 30
Here are some sites that helped me with this and some extra info.
http://en.wikipedia.org/wiki/Icosahedron
http://mathworld.wolfram.com/Icosahedron.html
http://www.scientek.com/macsyma/plotsurf.htm
Peace out.
2006-10-16 00:16:03 · answer #4 · answered by Pradyumna N 2 · 0⤊ 0⤋
An Icosahedron has 12 vertices, 30 edges, 20 faces, which satisfies the Euler characteristic equation, f+v-e=2. see that wikipedia link again for more info
2006-10-16 00:06:06 · answer #5 · answered by tsunamijon 4 · 0⤊ 0⤋
4
2016-05-22 06:00:15 · answer #6 · answered by ? 4 · 0⤊ 0⤋
20 faces.
20*3/2=30edges
20*3/5=12 vertices
2006-10-16 04:50:47 · answer #7 · answered by yupchagee 7 · 0⤊ 0⤋