Icosahedron

What is Icosahedron?


1.

An icosahedron is a 20-faced polyhedron.

Examples include the decagonal dipyramid, elongated triangular gyrobicupola (Johnson solid ), elongated triangular orthobicupola (), gyroelongated triangular cupola (), Jessen's orthogonal polyhedron, metabiaugmented dodecahedron (), nonagonal antiprism, parabiaugmented dodecahedron (), 18-gonal prism, 19-gonal pyramid, regular icosahedron, and rhombic icosahedron.


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