Ib dodecahedron yog ib daim duab peb sab uas muaj kaum ob lub ntsej muag uas yog pentagonal hauv cov duab . Txhua lub ntsej muag yog tiaj 2-D duab. Muaj tsib platonic solids platonic solids Platonic solids yog 5 hom nrog lawv tus kheej yam ntxwv, lawv yog: Tetrahedron muaj 4 daim duab peb sab ntsej muag, 6 ntug, thiab 4 vertices. Lub voos xwmfab muaj 12 ntug, 6 lub ntsej muag, thiab 8 vertices. https://www.cuemath.com › geometry › platonic-solids
Platonic Solids - Txhais, Khoom, Hom, Piv txwv, FAQs
thiab dodecahedron yog ib tug ntawm lawv.
Dab tsi yog dodecahedron hauv geometry?
Raws li wikipedia: "Ib qho dodecahedron tsis tu ncua … yog ua los ntawm 12 lub ntsej muag pentagonal tsis tu ncua, peb lub rooj sib tham ntawm txhua qhov vertex… Nws muaj 12 lub ntsej muag, 20 vertices, 30 ntug, thiab 160 kab pheeb ces kaum (60 lub ntsej muag kab pheeb ces kaum, 100 qhov chaw kab pheeb ces kaum)."
dodecahedron zoo li cas?
Ib dodecahedron yog polyhedra muaj 12 sab lossis ntsej muag (2 ntxiv rau 10), hedron hais txog ob sab. Peb lub logo pib ua dodecahedron nrog 12 lub ntsej muag pentagonal, 20 vertices, thiab 30 npoo (daim duab ntawm sab laug). Nws yog ib qho ntawm tsib Platonic solids.
20 lub ntsej muag hu ua dab tsi?
A 20 sided shape (polygon) hu ua Icosagon.
9999 sab lub npe hu li cas?
Koj hu li cas 9999-sided polygon? A nonanonacontanonactanonaliagon.
