Yuav ua li cas yuav ua tau rau ib tug prism ntawm daim ntawv?

Nyob ntawm lub hauv paus ntawm lub cev ntawm lub cev - cov yeeb yam dag pw, thiab txhua sab ntawm lub ntsej muag - qhov sib luag. Lub uninitiated, tej zaum ib tug me ntsis ntshai. Tab sis yog tias koj tus me nyuam raug hais kom tuaj rau zaj lus qhia nrog ib qho khoom plig, koj yeej xav pab nws thiab piav qhia txog kev yuav ua li cas.

Cia peb pib nrog cov khoom tsim tawm ncaj nraim. Nyob rau hauv no prism lub lateral ribs yog perpendicular mus rau hauv paus. Qhov yooj yim tshaj plaws yog los ntawm koj tus kheej lub ntsej muag ib daim ntawv ua tau nrog peb lub ntsej muag, txij li thaum nyob hauv nws cov hauv paus dag qhov nyuaj ntawm cov duab - cov vaj tse peb tog. Peb yuav ua rau "txoj cai" muaj txoj cai. Nws cov hauv paus yog sawv cev ntawm equilateral triangles.

Daim phiaj muaj peb sab

Peb yuav txiav txim siab seb qhov siab peb daim duab thij voos yuav ua tau ntawm ntawv. Kos ib daim duab uas muaj ib sab sib npaug zos rau qhov siab thiab sib npaug sib npaug ntawm qhov ntev ntawm txoj kab ntawm daim duab peb sab hauv qab. Tus duab plaub sib luag yog faib los ntawm txoj kab ncaj nraim rau hauv peb qhov chaw sib npaug. Los ntawm cov ces kaum ntawm qhov duab plaub hau, nruab nrab ntawm lub voj voog uas muaj sib npaug sib npaug ntawm peb tog peb sab hauv qab. Qhov twg lub voj voog tshaj qhov qub duab, peb muab cov ntsiab lus thiab txuas mus rau cov chaw hauv cov voj voog. Peb yuav tsum tau txais daim duab pom hauv nruab nrab ntawm daim duab.

Tom qab, daim duab txiav tawm nrog me me rau kev ua ub ua no, khoov raws cov kab uas twb muaj lawm thiab tau txais qhov kev kho tiav lawm.

Nyob rau daim ntawv pov thawj dab tsi ntawm daim ntawv plaub nrog plaub lub ntsej muag yog tsim, daim duab hauv daim duab qhia tau hais tias.

Hexagonal yam tshuaj

Ib qho piv txwv ntawm ib daim ntawv dawb pentahedral prism yog muaj nyob hauv daim duab.

Qhov no yog qhov siab ntawm lub pyramid yog 10 cm, qhov ntev ntawm ob sab ntawm lub pentahedron yog 3 cm ntawm lub hauv paus. Ib yam li ntawd, ib qho kev sib koom ua zoo ntawm daim ntawv ua tau, tab sis nws muaj ib tug hexagon nyob rau hauv nws lub hauv paus.

Inclined prism

Daim ntawv pov thawj cov ntawv xov xwm muaj nyob rau hauv daim duab no.

Nws sab tom ntsej muag yog ntawm lub kaum sab xis mus rau lub hauv paus. Tej yam zoo li no muaj peev xwm ua tau los ntawm cov qauv-luam. Muaj lub luag haujlwm ntawm qhov kev tsim khoom, koj tuaj yeem taug mus rau cov duab hauv qab no: ib qho pyramid , parallelepiped thiab ntau ntau icosahedron uas yog ntawv .