A dodecahedron (Greek δωδεκάεδρον, from δώδεκα 'twelve' + εδρον 'base', 'seat' or 'face') is any polyhedron with twelve faces, but usually a regular dodecahedron is meant: a Platonic solid composed of twelve regular pentagonal faces, with three meeting at each vertex. It has twenty (20) vertices and thirty (30) edges.

Dodekaedrs jeb divpadsmitskaldnis ir regulārs daudzskaldnis, kura visas skaldnes ir regulāri piecstūri. Tam ir 12 skaldnes, 30 šķautnes un 20 virsotnes. Katrā dodekaedra virsotnē kopā saiet 3 šķautnes un 3 skaldnes. Dodekaedra duālais daudzskaldnis ir ikosaedrs. Ja dodekaedra šķautnes garums ir , tad:

One of the characters in The Phantom Tollbooth, a children's novel from 1961, is named Dodecahedron and is a man with 12 faces. The Dodecahedron was the mysterious power source for an underground city in the Doctor Who episode "Meglos" (1980). In "Blood Feud", an episode of The Simpsons, Lisa attempts to teach Maggie the word dodecahedron.

Play with one here: A polyhedron (a flat-sided solid object) with 12 Faces. When it is regular (side lengths are equal and angles are equal) it is one of the...

2025年1月2日 · dodecahedron (plural dodecahedra or dodecahedrons) (geometry) A polyhedron with twelve faces; the regular dodecahedron has regular pentagons as faces and is one of the Platonic solids. Dodecahedron, (Gr.) in Geometry, is a solid Figure of 12 Sides or Faces that are regular Pentagons, it is one of the Platonick or Regular Bodies.

拉脱维亚语： dodekaedrs m; 立陶宛语： dodekaedras m; 马来语： segi dua puluh 、 dodekahedron; 挪威语： dodekaeder n; 波兰语： dwunastościan foremny m; 葡萄牙语： dodecaedro m; 克丘亚语： chunka iskayniyuq uya; 俄语： додека́эдр m (dodekáedr) 塞尔维亚-克 …

Dodekaedrs是将“十二面體"翻译成 拉脱维亚文。 译文示例：十二个塑像轮流移到窗户去,每次两个,看去仿佛在俯视人群。 ↔ Cita pēc citas visas 12 figūras pa pāriem parādās logos un paskatās uz lejā esošajiem cilvēkiem.

Dodekaedrs ir daudzstūris ar divpadsmit sejām, trīsdesmit malām un divdesmit virsotnēm. Tā ir trīsdimensiju figūra, kas sastāv no vairākiem daudzstūriem, no kuriem katram ir vienpadsmit vai mazāk sānu. Dodekaedru raksturo stingra figūra, un saskaņā ar dažiem zinātniskiem pētījumiem tas varētu tuvināt Visuma attēlojumu.

You download, print and instantly learn latvian with FREE 3D figūras flashcards. Ideal for teaching kids and students.

Dodekaedrs jeb divpadsmitskaldnis ir regulārs daudzskaldnis, kura visas skaldnes ir regulāri piecstūri. Regulārs divpadsmitskaldnis.