Tseem hu ua tsib lub polyhedra, lawv muaj tetrahedron (los yog pyramid), lub voos xwmfab, octahedron, dodecahedron, thiab icosahedron. Pythagoras (c. 580–c. 500 bc) tej zaum paub lub tetrahedron, lub voos xwmfab, thiab dodecahedron.
Muaj pes tsawg hom polyhedrons muaj?
Polyhedra feem ntau muab faib ua ob hom- tsis tu ncua polyhedron thiab tsis xwm yeem polyhedron. Ib qho polyhedron tsis tu ncua kuj tseem hu ua platonic khoom uas nws lub ntsej muag yog cov polygons tsis tu ncua thiab muaj kev sib koom ua ke. Nyob rau hauv ib txwm polyhedron, tag nrho cov kaum sab xis ntawm lub polyhedral yog sib npaug. Muaj tsib lub polyhedrons tsis tu ncua.
Puas muaj pes tsawg polyhedrons nyob rau hauv ib txwm?
Tseem hu ua tsib lub polyhedra, lawv muaj tetrahedron (los yog pyramid), lub voos xwmfab, octahedron, dodecahedron, thiab icosahedron. Pythagoras (c. 580–c. 500 bc) tej zaum paub lub tetrahedron, lub voos xwmfab, thiab dodecahedron.
Vim li cas thiaj tsuas muaj 5 polyhedrons?
Nyob rau hauv lub ntsiab lus: nws tsis tuaj yeem muaj ntau dua 5 platonic cov khoom, vim tias muaj lwm yam ua txhaum cai yooj yim txog cov npoo, kaum thiab ntsej muag peb tuaj yeem ua ke..
Ntau lub npe polyhedron yog dab tsi?
Muaj cov npe geometric generic rau polyhedra feem ntau. Lub 5 Platonic solids yog hu ua ib tug tetrahedron, hexahedron, octahedron, dodecahedron thiab icosahedronnrog 4, 6, 8, 12, thiab 20 sab raws.
