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Podaljšana tristrana kupola

Podaljšana tristrana kupola
Vrsta Johnsonovo telo
J17-J18-J19
Stranske ploskve 1+3 trikotnikov
3.3 kvadratov
1 šestkotnik
Oglišča 15
Robovi 27
Konfiguracija oglišča 6(42.6)
3(3.4.3.4)
6(3.43)
Grupa simetrije C3v
Dualni polieder -
Lastnosti konveksna

mreža telesa

Podaljšana tristrana kupola je eno izmed Johnsonovih teles (J18). Njeno ime nakazuje, da jo dobimo tako, da podaljšamo tristrano kupolo (J3) tako, da pritrdimo šeststrano prizmo na njeno osnovno ploskev.

V letu 1966 je Norman Johnson (rojen 1930) imenoval in opisal 92 Johnsonovih teles.

Prostornina in površina

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Naslednja izraza za prostornino (V) in površino (P) sta uporabna za vse vrste stranskih ploskev, ki so pravilne in imajo dolžino roba a [1]

Dualni polieder

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Dualno telo podaljšane tristrane kupole ima 15 stranskih ploskev: 6 enakokrakih trikotnikov, 3 rombi in 6 štirikotnikov.

Dualno telo podaljšane tristrane kupole Mreža dualnega telesa

Opombe in sklici

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  1. Stephen Wolfram, "Elongated triangular cupola" na Wolfram Alpha. Pridobljeno 22. julija 2010.

Zunanje povezave

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Podaljšana tristrana kupola
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