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Meta dvojno izginjajoč ikozaeder

Meta dvojno izginjajoči ikozaeder
Vrsta Johnsonovo telo
J61-J62-J63
Stranske ploskve 3x2+4 trikotnikov

2 petkotnika

Robovi 20
Oglišča 10
Dualni polieder -
Simetrijska grupa C2v
Konfiguracija oglišča 2(3.52)
2+4(33.5)
2(35)
Značilnosti konveksen
mreža telesa

Meta dvojno izginjajoči ikozaeder je v geometriji eno izmed Johnsonovih teles (J62). Njegovo ime kaže tudi kako lahko nastane. Dobi se ga z odstranitvijo dveh petstranih piramid na pravilnem ikozaedru tako, da se zamenjata dve skupini trikotniških stranskih ploskev na ikozaedru z dvema sosednjima petkotnškima stranskima ploskvama. Če pase odstranita dve petstranski piramidi iz nesosednjih petkotnih stranskih ploskev, se dobi namesto tega petstrano antiprizmo.

Meta dvojno izginjajoči ikozaeder je v letu 1966 opisal in imenoval matematik Norman Johnson (rojen 1930).

Zunanje povezave

[uredi | uredi kodo]
  • Weisstein, Eric Wolfgang. »Metabidiminished Icosahedron«. MathWorld.
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Meta dvojno izginjajoč ikozaeder
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