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See also:ICOSAHEDRON (Gr. e'IKOVL, twenty, and Ebpa, a See also:face or See also:base) , in See also:geometry, a solid enclosed by twenty faces . The " See also:regular See also:icosahedron " is one of the Platonic solids; the " See also:great icosahedron " is a See also:Kepler-See also:Poinsot solid; and the " truncated icosahedron " is an Archimedean solid (see See also:POLYHEDRON) . In See also:crystallography the icosahedron is a possible See also:form, but it has not been observed; it is closely simulated by a See also:combination of the See also:octahedron and pentagonal See also:dodecahedron, which has twenty triangular faces, but only eight are equilateral, the remaining twelve being isosceles (see CRYSTALLOGRAPHY) . |
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It is a 3D shape with 12 corners, 20 faces and 30 edges. Every face is an equilateral triangle & it's name is from Greek.
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