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In geometry, the elongated triangular pyramid is one of the Johnson solids (J7). As the name suggests, it can be constructed by elongating a tetrahedron by attaching a triangular prism to its base. Like any elongated pyramid, the resulting solid is topologically (but not geometrically) self-dual. A Johnson solid is one of 92 strictly convex polyhedra that is composed of regular polygon faces but are not uniform polyhedra (that is, they are not Platonic solids, Archimedean solids, prisms, or antiprisms). They were named by Norman Johnson, who first listed these polyhedra in 1966.

AttributesValues
rdf:type
rdfs:label
  • Piràmide triangular allargada (ca)
  • Elongated triangular pyramid (en)
  • Plilongigita triangula piramido (eo)
  • Pirámide triangular elongada (es)
  • Piramide triangeluar elongatu (eu)
  • Pyramide triangulaire allongée (fr)
  • Piramide triangolare elongata (it)
  • 正三角錐柱 (ja)
  • 늘린 삼각뿔 (ko)
  • Verlengde driehoekige piramide (nl)
  • Pirâmide triangular alongada (pt)
  • Удлинённая треугольная пирамида (ru)
  • 三角錐柱 (zh)
rdfs:comment
  • En geometrio, la plilongigita triangula piramido estas unu el la solidoj de Johnson (J7). Kiel la nomo sugestas, ĝi povas esti konstruita per plilongigo de kvaredro per aldono de triangula prismo al ĝia bazo. Kiel ĉiu plilongigita piramido, ĝi estas mem-. Plilongigita triangula piramido estas sepedro. (eo)
  • In geometry, the elongated triangular pyramid is one of the Johnson solids (J7). As the name suggests, it can be constructed by elongating a tetrahedron by attaching a triangular prism to its base. Like any elongated pyramid, the resulting solid is topologically (but not geometrically) self-dual. A Johnson solid is one of 92 strictly convex polyhedra that is composed of regular polygon faces but are not uniform polyhedra (that is, they are not Platonic solids, Archimedean solids, prisms, or antiprisms). They were named by Norman Johnson, who first listed these polyhedra in 1966. (en)
  • Geometrian, piramide triangeluar elongatua Johnsonen solidoetako bat da (J7), tetraedro baten oinarriari prisma triangeluar bat lotuz eraiki daitekeena. Johnsonen solidoak 92 dira; eta Norman Johnson-ek izendatu eta deskribatu zituen, 1966an. (eu)
  • En geometría, la pirámide triangular elongada es uno de los sólidos de Johnson (J7). Como sugiere su nombre, puede construirse elongando un tetraedro mediante la fijación de un prisma triangular a su base. Al igual que cualquier pirámide elongada, el sólido resultante es autodual. Los 92 sólidos de Johnson fueron nombrados y descritos por Norman Johnson en 1966. (es)
  • La pyramide triangulaire allongée est un polyèdre faisant partie des 92 solides de Johnson (J7). Comme son nom le suggère, elle peut être obtenue par l'allongement d'un tétraèdre en attachant un prisme triangulaire à sa base. (fr)
  • 正三角錐柱(せいさんかくすいちゅう、Elongated triangular pyramid)とは、7番目のジョンソンの立体で、正三角柱の内の1つの底面に正三角錐(正四面体)をつけたものである。 (ja)
  • 기하학에서 늘린 삼각뿔은 존슨의 다면체 중 하나이다(J7). 이름이 보여주듯, 이것은 정사면체의 밑면에 삼각기둥을 붙여 늘려서 만들 수 있다. 여느 늘린 각뿔과 마찬가지로, 나타나는 다면체는 위상적으로(기하학적으로는 아니지만) 자기쌍대이다. 존슨의 다면체는 정다각형 면을 가지지만 고른 다면체는 아닌 엄격히 볼록인 다면체 92개이다(즉, 플라톤 다면체, 아르키메데스의 다면체, 각기둥, 또는 엇각기둥이 아니다). 이것은 1966년에 이 다면체를 처음으로 나열한 의 이름을 따왔다. (ko)
  • Een verlengde driehoekige piramide is in de meetkunde het johnsonlichaam J7. Het wordt verkregen door een viervlak te verlengen en een driehoekig prisma als basis te nemen. Deze figuren op elkaar geplaatst vormen een verlengde driehoekige piramide. Er is met verlengde driehoekige piramides een ruimtevulling mogelijk met daarbij regelmatige achtvlakken en driehoekige prisma's. De 92 johnsonlichamen werden in 1966 door Norman Johnson benoemd en beschreven. * (en) MathWorld. Elongated Triangular Pyramid (nl)
  • In geometria, la piramide triangolare elongata è un solido di 7 facce che può essere costruito, come intuibile dal suo nome, allungando un tetraedro (detto anche "piramide a base triangolare") attraverso l'aggiunta di un prisma triangolare a una delle sue facce. (it)
  • Em geometria, a pirâmide triangular alongada é um dos Sólidos de Johnson (J7). Como o nome sugere, pode ser construído alongando-se um tetraedro ao juntar um prisma triangular a sua base. Como qualquer pirâmide alongada, o sólido resultante é topologicamente, mas não geometricamente, autodual. (pt)
  • 在幾何學中,三角錐柱是指底面為三邊形的錐柱體,或是將底面全等的三角錐與三角柱疊合所形成的立體。若底面為正三角形則稱為正三角錐柱。三角錐柱具有7個面、12個邊、和7個頂點,每個三角錐柱皆為一個七面體。 (zh)
  • En geometria, la piràmide triangular allargada és un dels noranta-dos sòlids de Johnson (J₄). Es pot obtenir allargant un tetràedre enganxant-li un prisma triangular a una base. D'aquí ve el seu nom. Com en el cas de totes les piràmides allargades, el sòlid que en resulta és dual de si mateix. (ca)
  • Удлинённая треуго́льная пирами́да — один из многогранников Джонсона (J7, по Залгаллеру — М1+П3). Составлена из 7 граней: 4 правильных треугольников и 3 квадратов. Каждая квадратная грань окружена двумя квадратными и двумя треугольными; среди треугольных граней 1 окружена тремя квадратными, остальные 3 — квадратной и двумя треугольными. Имеет 12 рёбер одинаковой длины. 3 ребра располагаются между двумя квадратными гранями, 6 рёбер — между квадратной и треугольной, остальные 3 — между двумя треугольными. (ru)
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