Video: Yuav ua li cas koj pom thaj tsam ntawm daim duab hauv square units?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Thaj chaw yog ntsuas hauv " square " units . Cov thaj tsam ntawm ib daim duab yog tus naj npawb ntawm cov squares yuav tsum tau npog nws tag nrho, zoo li cov vuas rau hauv pem teb. Thaj chaw ntawm a square = sab sij hawm sab. Los ntawm txhua sab ntawm a square yog tib yam, nws tuaj yeem yog qhov ntev ntawm ib sab squared.
Yog li ntawd, koj yuav nrhiav tau ib cheeb tsam ntawm daim duab li cas?
Qhov yooj yim tshaj plaws (thiab feem ntau siv) cheeb tsam Kev suav yog rau squares thiab rectangles. Rau nrhiav tus cheeb tsam ntawm ib daim duab plaub muab nws qhov siab los ntawm nws qhov dav. Rau ib square koj tsuas xav tau nrhiav qhov ntev ntawm ib sab (raws li txhua sab yog tib qhov ntev) thiab muab qhov no los ntawm nws tus kheej mus rau nrhiav tus cheeb tsam.
Tsis tas li ntawd, vim li cas koj thiaj siv square units rau cheeb tsam? Vim a square yog lub polygon uas yooj yim tshaj los xam cheeb tsam vim nws tsuas yog sab sij hawm xwb. Daim duab peb sab muaj qhov nyuaj dua cheeb tsam qauv.
Ntawm no, thaj tsam ntawm daim duab uas npog 7 unit squares yog dab tsi?
Thaj chaw
| Qhov chaw npog | Tus lej | Thaj tsam kwv yees (sq. units) |
|---|---|---|
| Tag nrho cov squares | 6 | 6 |
| Ib nrab-square | 7 | 7 x ½ |
| Squares puv ntau tshaj ib nrab | 0 | 0 |
| Squares puv tsawg dua ib nrab | 0 | 0 |
Tus qauv rau cheeb tsam yog dab tsi?
Thaj chaw yog ntsuas nyob rau hauv square units xws li square inches, square feet los yog square meters. Yuav nrhiav tau cheeb tsam ntawm ib daim duab plaub, muab qhov ntev los ntawm qhov dav. Cov qauv yog: A = L * W qhov twg A yog tus cheeb tsam , L yog qhov ntev, W yog qhov dav, thiab * txhais tau tias sib npaug.
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