Heksaeder
Et heksaeder (eller hexaeder) er et polyeder med seks sider. Et velkendt hexaeder er terningen.
| Firkantsideflade-heksaeder (kasseformet) 6 sider, 12 kanter, 8 hjørner | ||||||
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| Terning (kvadrat) | Rektangulær kasse (tre par af rektangler) | Trigonalt trapezoeder (kongruente romber) | Trigonalt trapezoeder (kongruente firkanter) | Firsidet keglestub (apeks-afkortet kvadratisk pyramide) | Parallelepipedum (tre par af parallelogrammer) | (tre par af romber) |
| Oh, [4,3], (*432)
orden 48 |
D2h, [2,2], (*222)
orden 8 |
D3d, [2+,6], (2*3)
orden 12 |
D3, [2,3]+, (223)
orden 6 |
C4v, [4], (*44)
orden 8 |
Ci, [2+,2+], (×)
orden 2 | |
Andre
 Triangulært bipyramide
36 Sider 9 K, 5 H |
  Tetragonal antikile. Chiral – findes i "venstre-håndet" og "højre-håndet" spejlede former.
4.4.3.3.3.3 Sider 10 K, 6 H |
 4.4.4.4.3.3 Sider
11 K, 7 H |
 Pentagonal pyramide
5.35 Sider 10 K, 6 H |
 5.4.4.3.3.3 Sider
11 K, 7 H |
 5.5.4.4.3.3 Sider
12 K, 8 H |
Der er tre yderligere topologisk særskilte hexahedra, der kun kan realiseres som konkaviske figurer:
| Konkav | ||
|---|---|---|
 4.4.3.3.3.3 Sider
10 K, 6 H |
 5.5.3.3.3.3 Sider
11 H, 7 K |
 6.6.3.3.3.3 Sider
12 K, 8 H |
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