How is icosahedron pronounced?
What does icosahedron mean?
: a polyhedron having 20 faces.
Is icosahedron a word?
In geometry, an icosahedron (/ˌaɪkɒsəˈhiːdrən, -kə-, -koʊ-/ or /aɪˌkɒsəˈhiːdrən/) is a polyhedron with 20 faces. The name comes from Ancient Greek εἴκοσι (eíkosi) ‘twenty’ and from Ancient Greek ἕδρα (hédra) ‘ seat’. The plural can be either “icosahedra” (/-drə/) or “icosahedrons”.
How is dodecahedron pronounced?
Why is it called a dodecahedron?
Volume and Surface Area. It is called a dodecahedron because it is a polyhedron that has 12 faces (from Greek dodeca- meaning 12).
What is called dodecahedron?
In geometry, a dodecahedron (Greek δωδεκάεδρον, from δώδεκα dōdeka “twelve” + ἕδρα hédra “base”, “seat” or “face”) or duodecahedron is any polyhedron with twelve flat faces. The most familiar dodecahedron is the regular dodecahedron with regular pentagons as faces, which is a Platonic solid.