Non-polyhedrons yog cones, spheres, thiab cylinders vim lawv muaj ob sab uas tsis yog polygons.
Dab tsi yog polyhedrons?
Non-polyhedrons yog cones, spheres, thiab cylinders vim lawv muaj ob sab uas tsis yog polygons. Lub prism yog ib tug polyhedron nrog ob lub hauv paus congruent, nyob rau hauv parallel dav hlau, thiab lateral sab yog cov duab plaub. Prisms tau tshawb pom nyob rau hauv kev nthuav dav ntxiv hauv lwm Lub Tswv Yim.
Yuav ua li cas hauv qab no yog polyhedrons?
Ib lub polyhedron yog peb-dimensional khoom ua los ntawm polygons. Nws muaj lub ntsej muag ncaj, ncaj ntug, thiab ntsug. Piv txwv li, ib qho cube, prism, lossis pyramid yog polyhedrons. Cones, spheres, thiab cylinders tsis yog-polyhedrons vim tias lawv ob sab tsis yog polygons thiab lawv muaj qhov nkhaus.
Puas yog lub voos xwmfab polyhedron?
Qhov piv txwv paub zoo tshaj plaws ntawm polyhedron yog lub voos xwmfab. Nws lub ntsej muag yog squares, thiab nws muaj 6 ntawm lawv. Nws kuj muaj 12 ntug thiab 8 ntsug. Lwm qhov piv txwv paub yog lub pyramid.
polyhedron yog dab tsi muab ob qho piv txwv?
Polyhedrons yog cov khoom nrog lub ntsej muag tiaj tus. … Piv txwv ntawm lub ntiaj teb polyhedrons muaj xws li pob ncaws pob, prisms, cib, tsev, thiab pyramids. Tag nrho cov duab no muaj lub tiaj tiaj. Yog tias ib qho duab muaj ib sab nkhaus ntawm txhua yam, ces nws tsis yog polyhedron lawm.
