Volume vs Surface Area
Qhov chaw thiab ntim yog ob qhov sib txawv tab sis muaj feem xyuam nrog cov ntsiab lus hauv kev ua lej thiab muaj qhov tseem ceeb hauv kev tsim kho nrog rau kev txiav txim siab lub peev xwm ntawm chav tsev lossis qhov chaw. Piv txwv li, yog tias koj tab tom nrhiav qhov chaw los ua koj lub tsev warehouse, koj pom tseeb xav paub qhov ntim ntawm qhov chaw kom koj tuaj yeem xam cov khoom koj khaws tau yooj yim npaum li cas. Ntawm qhov tod tes, lub tswv yim ntawm thaj chaw saum npoo yog qhov tseem ceeb vim nws txiav txim siab qhov kev siv nyiaj uas koj yuav tsum tau tshwm sim thaum mus rau hauv chav tha xim (ntau qhov chaw saum npoo, ntau dua yog tus nqi tshwm sim ntawm kev pleev xim). Cia peb pom cov qauv siv los xam ob lub ntsiab lus tseem ceeb thiab qhov sib txawv thiab kev sib raug zoo ntawm qhov ntim thiab qhov chaw.
Cia peb pib nrog qhov tsawg tshaj plaws thiab yooj yim ntawm cov qauv. Muaj pes tsawg qhov sib tw sticks ib lub thawv sib tw muaj nyob ntawm thaj tsam ntawm sab hauv ntawm lub thawv li ces koj tuaj yeem xam cov lej sib tw uas yuav haum yooj yim hauv lub thawv. Tab sis tus nqi ntawm cov dej siv los ntawm ib tus tswv cuab ntawm tsev neeg txiav txim siab lub peev xwm ntawm lub tank dej uas koj thaum kawg tau nruab rau ntawm lub ru tsev. Ntawm no, nws yog ntim thiab tsis yog thaj chaw uas koj txhawj xeeb nrog. Volume ntawm ib chav duab plaub yog qhov yooj yim tshaj los xam raws li koj yuav tsum tau muab cov cheeb tsam ntawm chav nrog qhov siab kom tau txais nws. Yog hais tias chav tsev yog square, nws yog txhua yam yooj yim li ces ib tug yuav tsum nrhiav lub voos xwmfab ntawm sab ntawm chav tsev. Ib yam uas yuav tsum nco ntsoov rau tus menyuam kawm ntawv yog qhov ntim ib txwm qhia hauv cubic units whereas cheeb tsam qhia hauv square units. Yog li, koj muaj square feet lossis square metres raws li thaj tsam ntawm qhov chaw thaum cov lus teb ntawm ntim yog ib txwm nyob hauv cubic feet lossis cubic meter. Qhov chaw saum npoo ib txwm yog qhov peb tuaj yeem kov thaum ntim yog dab tsi lub cev ntawm cov duab tuaj yeem muaj.
Koj tsis hu nws thaj tsam ntawm sab hauv ntawm lub zais pa. Koj hu nws lub ntim ntawm lub zais pa. Yog li thaum ntim yog qhov chaw hauv ib qho khoom, thaj chaw yog tag nrho cheeb tsam ntawm cov khoom. Yog tias peb muaj ib lub voos xwmfab ntawm ib sab a, thaj tsam ntawm txhua sab yog X a, tab sis muaj 6 sab, yog li tag nrho qhov chaw saum npoo yog 6 X a X a (=6a²). Lub tswv yim ntawm thaj chaw saum npoo thiab ntim tau yooj yim to taub thaum peb yuav tsum qhwv ib qho khoom plig tom qab muab tso rau hauv ib lub thawv. Tus nqi ntawm daim ntawv khoom plig uas siv los qhwv lub thawv yog nyob ntawm thaj tsam ntawm lub thawv, qhov chaw hauv lub thawv qhia txog qhov ntim ntawm lub thawv (lossis tam sim no).
thaj chaw saum npoo thiab ntim yog ob lub ntsiab lus uas muaj ntau daim ntawv thov hauv ntiaj teb tiag tiag, thiab tsis yog txhais tau tias yuav muab qhwv rau hauv cov ntawv nyeem nkaus xwb.
In luv:
Qhov txawv ntawm ntim thiab thaj chaw saum npoo
• Qhov chaw ntawm lub hub txias, yog tias nws yog duab plaub, yog nws qhov ntev X dav, qhov uas nws ntim tau paub thaum qhov siab ntawm lub thawv txias kuj raug txiav txim siab
• thaj chaw saum npoo yog ob sab qhov ntim yog peb seem
• Chav nyob ntawm thaj chaw yog square feet lossis square meters whereas units ntawm ntim yog cubic feet lossis cubic meter.
• Koj yuav tsum tau ua tib zoo xav txog thaj tsam ntawm phab ntsa ntawm chav tsev thaum koj tau pleev xim rau, qhov koj yuav tsum xam nws qhov ntim yog tias koj xav paub lub peev xwm ntawm chav tsev yog tias nws yuav siv. ua warehouse.
