Ntau tus neeg yuam kev ntseeg tias lawv thawj zaug ntsib cov duab geometric hauv tsev kawm ntawv theem siab. Nyob ntawd lawv kawm lawv lub npe, cov khoom thiab cov qauv. Tab sis qhov tseeb, txij li thaum yau, txhua yam khoom uas tus menyuam pom, hnov, hnov tsw lossis cuam tshuam nrog nws hauv lwm txoj kev, yog ib daim duab geometric. Lub rooj zaum ntawm tus poj niam uas nyuam qhuav yug me nyuam dag yog ib daim duab plaub, lub teeb uas muab rau obstetricians lub teeb yog ib puag ncig daim duab, lub vents nyob rau hauv lub qhov rais yog squares. Cov npe tsis muaj qhov kawg.
Geometric cov duab, ncaj qha raws li lub hauv paus ntawm kev tshawb fawb, tau ntsib thawj zaug los ntawm cov menyuam kawm ntawv hauv cov qib nrab. Koj tuaj yeem hais tias geometry pib nrog lawv. Txawm li cas los xij, raws li tau hais los saum no, thawj qhov kev cuam tshuam nrog lawv tshwm sim ntev ua ntej ntawd. Piv txwv li, coj ib qho taw tes. Nws yog daim duab me tshaj plaws hauv geometry. Tsis tas li ntawd, nws raug suav hais tias yog lub hauv paus ntawm lwm tus (xws li atoms hauv chemistry). Txhua daim duab peb sab, squares thiab lwm yam duab ntawm ib qho twgCov duab kos yog ua los ntawm ntau cov dots. Lawv muaj qee yam khoom, txhua yam uas muaj nyob hauv ib daim duab xwb (tsis muaj lwm tus tuaj yeem muaj txiaj ntsig nrog lawv).
Nws tuaj yeem xav tias txhua daim duab geometric muaj ncaj qha ntawm kab, tab sis nws yog dab tsi? Qhov no yog cov dots teem nyob rau hauv ib kab. Lawv tuaj yeem txuas ntxiv mus tsis kawg, txij li txoj kab ncaj nraim tsis xaus. Yog hais tias nws yog bounded ntawm ob sab, ces nws yog kev cai los hu nws ib ntu. Yog tias tsuas muaj ib qho kev txwv, ces koj muaj txoj kab hluav taws xob. Yog li ntawd, tag nrho cov duab tiaj tus hauv geometry muaj cov ntu, vim tias cov khoom muaj qhov kawg thiab qhov pib. Nws yog ib nqi sau cia hais tias txoj kab ncaj nraim, uas tau muab faib los ntawm ib tug taw tes, yog ob lub rays coj nyob rau hauv opposite lus qhia rau ib leeg.
Tsis yog geometry tsuas yog muaj cov ntsiab lus tiaj tus, kuj tseem muaj cov duab peb sab geometric. Lawv pib kawm lawv tom tsev kawm ntawv tom qab, ze rau kev kawm tiav, tab sis ib tug neeg ntsib lawv, dua, ntau dua. Piv txwv li, thaum tus me nyuam khaws ib lub voos xwmfab, nws tuav ib lub voos xwmfab hauv nws txhais tes. Los yog, yog hais tias nws saib ntawm lub hauv siab ntawm drawers, ces nyob rau hauv pem hauv ntej ntawm nws yog ib tug rectangular parallelepiped. Tag nrho cov duab peb-dimensional muaj cov dav hlau (uas yog, nws yog lub ntsiab lus tseem ceeb uas tsis muaj tseeb, zoo li txoj kab ncaj nraim). Tib lub parallelepiped muaj rau lub ntsiab lus. Koj tuaj yeem pom kev paub nrog lub dav hlau los ntawm kev saib ntawm qhov chaw ntawm txhua lub rooj. Tab sis qhov no tsuas yog ib feem ntawm nws, vim tias muaj kev txwv. Lub dav hlau nws tus kheej yog infinite li txoj kab ncaj nraimkab.
Yog li, tsis muaj ib qho chaw uas cov duab geometric yuav tsis ntsib. Lawv lub npe txawv, lawv txhais cov khoom thiab cov yam ntxwv. Piv txwv li, cov qauv rau thaj tsam ntawm ib daim duab peb sab yuav tsis ua haujlwm rau ib daim duab plaub lossis square.
Nws raug nquahu kom qhia tus menyuam rau cov duab geometric thaum ntxov li hnub nyoog preschool. Koj tuaj yeem ua rau lawv nrog koj tus kheej tes, thiab tom qab ntawd nteg tawm ntau cov duab kos rau ntawm daim ntawv nrog lawv (yog tias cov no yog cov ntsiab lus tiaj tus). Txawm li cas los xij, tsis txhob tso tseg rau cov duab volumetric. Hauv Is Taws Nem koj tuaj yeem pom ntau yam kev ua si Didactic ntsig txog qhov no. Tab sis peb yuav tsum tsis txhob tso tseg kom paub lawv, vim txhua yam peb pom yog cov duab geometric. Txawm yog ib tug neeg los los ntawm lawv!
