Hauv geometry, dodecahedron lossis duodecahedron yog ib qho polyhedron nrog kaum ob lub ntsej muag. Cov dodecahedron paub zoo tshaj plaws yog dodecahedron tsis tu ncua nrog pentagons li lub ntsej muag, uas yog Platonic khoom. Kuj tseem muaj peb lub hnub qub dodecahedra, uas tau tsim los ua lub hnub qub ntawm daim ntawv convex.
Dab tsi yog hom dodecahedron?
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.
12 lub voos xwmfab hu ua dab tsi?
In geometry, a dodecahedron (Greek δωδεκάεδρον, los ntawm δώδεκα dōdeka "twelve" + ἕδρα hédra "base", "seat" or "face") los yog duodecahedron yog ib qho polyh nrog kaum ob lub ntsej muag.
Dab tsi tshwj xeeb txog dodecahedron?
Lub dodecahedron li niaj zaus yog ib qho ntawm tsib Platonic solids: nws lub ntsej muag yog tag nrho cov pentagons tsis tu ncua. Nws muaj nees nkaum vertices thiab peb caug npoo. Peb lub ntsej muag sib ntsib ntawm txhua qhov vertex. Nws yog dual rau icosahedron li niaj zaus.
Puas yog dodecahedron ib daim duab 2D?
A Dodecahedron yog 3D duab nrog kaum ob lub ntsej muag. Txhua lub ntsej muag yog lub pentagon tsis tu ncua. Lub pentagon yog 2D duab nrog tsib sab. … Zoo li tag nrho cov duab 3D, nws tuaj yeem sib sau ua ke dodecahedron siv lub vas.
