Oktahedron

Oktahedron beraturan

(Klik disini untuk melihat model berputar)
Jenis Bangun ruang Platonik
shortcode 4<> 3z
Elemen F = 8, E = 12
V = 6 (χ = 2)
Muka berdasarkan jumlah sisi 8{3}
Notasi Conway O
aT
Simbol Schläfli {3,4}
r{3,3} atau
Konfigurasi muka V4.4.4
Simbol Wythoff 4 | 2 3
Diagram Coxeter
Simetri Oh, BC3, [4,3], (*432)
Grup putaran O, [4,3]+, (432)
Referensi U05, C17, W2
Sifat beraturan, cembungdeltahedron
Sudut dihedral 109,47122° = arccos(−)

3.3.3.3
(Bangun titik pojok)

Kubus
(Polihedron dual)

Jaringan
Model 3D untuk oktahedron beraturan.

Dalam geometri, oktahedron (atau bidang delapan) adalah sebuah polihedron yang mempunyai delapan buah muka, sisi yang datar. Adapun oktahedron beraturan merupakan sebuah oktahedron yang tersusun atas delapan buah segitiga sama sisi, dan empat buah muka dari oktahedron bertemu di masing-masing titik sudut. Oktahedron beraturan termasuk bangun ruang Platonik. Oktahedron beraturan merupakan polihedron dual dari kubus.


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