Oktadekaedro
Geometrian, oktadekaedroa (edo oktakaidekaedroa) 18 aurpegiko poliedroa da.
Adibideak
Oktadekaedrorik ezagunenenak piramide heptadekagonala, prisma hexadekagonala, eta antiprisma oktogonala dira. Prisma hexadekagonala eta antiprisma oktogonala poliedro uniformeak dira, oinarritzat poligono erregularra eta albo-aurpegitzat karratuak edo Hiruki aldeberdinak dituztenak. Lau oktadekaedro gehiago Johnsonen solidoen artean: Girobikupula karratua, Ortobikupula karratua, Kupula karratu elongatua, eta Esfenomegakoroa. Lau Johnsonen solidok dualak oktodekaedroalak dituzte: ortobikupula triangeluar elongatua, Girobikupula triangeluar elongatua, Bikupula triangeluar giroelongatua, eta Hebesfenorrotonda triangeluarra.
 Antiprisma oktogonala |
 Girobikupula karratua |
 Esfenomegakoroa |
Izar-poliedro uniforme batzuk ere oktadekaedroak dira:
 Antiprisma oktogramikoa |
 Antiprisma gurutzatu oktogramikoa |
 Erronbihexaedro txikia |
 Dodekahemidodekaedro txikia |
 Erronbihexaedro handia |
 Dodekahemidodekaedro handia |
Kanpo estekak
| Autoritate kontrola |
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Datuak: Q6607152
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