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The heptagonal bipyramid is one of the infinite set of bipyramids, dual to the infinite prisms. If an heptagonal bipyramid is to be face-transitive, all faces must be isosceles triangles. The resulting solid has 14 triangular faces, 9 vertices and 21 edges.

AttributesValues
rdfs:label
  • Bipiramide heptagonal (eu)
  • Heptagonal bipyramid (en)
  • 雙七角錐 (zh)
rdfs:comment
  • The heptagonal bipyramid is one of the infinite set of bipyramids, dual to the infinite prisms. If an heptagonal bipyramid is to be face-transitive, all faces must be isosceles triangles. The resulting solid has 14 triangular faces, 9 vertices and 21 edges. (en)
  • Geometrian, bipiramide heptagonala bi lotzean, oinarriak bat eginez, lortzen den poliedroa da. (eu)
  • 在幾何學中，雙七角錐是指以七邊形做為基底的雙錐體。所有雙七角錐都有14個面，21個邊和9個頂點。所有雙七角錐都是十四面體。 如果雙七角錐以正七邊形做為基底則可稱為雙正七角錐或正七角雙錐。每個面都是正多邊形的正七角雙錐不存在，因為正六角雙錐已經是平面了，每個面都是正多邊形的正七角雙錐將會變成七階三角形鑲嵌的一部分，因此正七角雙錐不是半正多面體。其在施萊夫利符號中用{ } + {7}表示，具有D7與D7h對稱群。 正七角雙錐能在自然界中存在，例如某些化學結構，如九硼離子B9－有中種分子異構形為正七角雙錐、有機金屬錯合物[(C7H7)V(CO)3]也具有正七角雙錐結構。 (zh)
foaf:depiction
  • http://commons.wikimedia.org/wiki/Special:FilePath/Heptagonal_bipyramid.png
dcterms:subject
Wikipage page ID
Wikipage revision ID
Link from a Wikipage to another Wikipage
Link from a Wikipage to an external page
sameAs
Symmetry Group
dbp:wikiPageUsesTemplate
thumbnail
dual
Edge Count
Face List
Property List
schläfli
  • { } + {7} (en)
Vertex Count
image file
  • Heptagonal bipyramid.png (en)
title
  • Dipyramid (en)
urlname
  • Dipyramid (en)
has abstract
  • The heptagonal bipyramid is one of the infinite set of bipyramids, dual to the infinite prisms. If an heptagonal bipyramid is to be face-transitive, all faces must be isosceles triangles. The resulting solid has 14 triangular faces, 9 vertices and 21 edges. (en)
  • Geometrian, bipiramide heptagonala bi lotzean, oinarriak bat eginez, lortzen den poliedroa da. (eu)
  • 在幾何學中，雙七角錐是指以七邊形做為基底的雙錐體。所有雙七角錐都有14個面，21個邊和9個頂點。所有雙七角錐都是十四面體。 如果雙七角錐以正七邊形做為基底則可稱為雙正七角錐或正七角雙錐。每個面都是正多邊形的正七角雙錐不存在，因為正六角雙錐已經是平面了，每個面都是正多邊形的正七角雙錐將會變成七階三角形鑲嵌的一部分，因此正七角雙錐不是半正多面體。其在施萊夫利符號中用{ } + {7}表示，具有D7與D7h對稱群。 正七角雙錐能在自然界中存在，例如某些化學結構，如九硼離子B9－有中種分子異構形為正七角雙錐、有機金屬錯合物[(C7H7)V(CO)3]也具有正七角雙錐結構。 (zh)
Face Type
  • V4.4.7 (en)
Polyhedron Type
rotation group
  • D7, [7,2]+, , order 14 (en)
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