Yuav ua li cas koj nrhiav tau tus ntoo khaub lig seem ntawm ib tug square?
Yuav ua li cas koj nrhiav tau tus ntoo khaub lig seem ntawm ib tug square?

Video: Yuav ua li cas koj nrhiav tau tus ntoo khaub lig seem ntawm ib tug square?

Video: Yuav ua li cas koj nrhiav tau tus ntoo khaub lig seem ntawm ib tug square?
Video: Qhia Suab 20: Consonant Q 2024, Kaum ib hlis
Anonim

VIDEO

Ua kom pom qhov no, dab tsi yog qhov hla ntawm lub square?

Hla ntu . A hla ntu yog cov duab peb tau txais thaum txiav ncaj los ntawm ib yam khoom. Cov hla ntu ntawm cov khoom no yog daim duab peb sab. Nws zoo li kev pom rau sab hauv ntawm ib yam dab tsi uas tau txiav los ntawm nws.

Kuj Paub, dab tsi yog qhov cross section ntawm ib daim duab plaub? Yam khoom yog ib txoj cai duab plaub prism. Qhov siab tshaj plaws ntawm "sab" ntawm a hla ntu sib npaug ntawm cov ntsej muag (surfaces) ntawm cov khoom. Txij li thaum duab plaub prism qhia saum toj no muaj 6 lub ntsej muag, a hla ntu ntawm cov khoom ntawd yuav muaj ntau tshaj 6 sab.

Nyob rau hauv no txoj kev, koj yuav nrhiav tau qhov cross sectional cheeb tsam ntawm ib tug square?

Hla - Thaj Chaw of a Rectangular Solid Lub ntim ntawm cov khoom duab plaub, suav nrog lub voos xwmfab, yog qhov cheeb tsam ntawm nws lub hauv paus (ntev lub sij hawm dav) muab los ntawm nws qhov siab: V = l × w × h. Yog li ntawd, yog tias a hla ntu yog parallel rau saum lossis hauv qab ntawm cov khoom, lub cheeb tsam ntawm ntoo khaub lig - ntu yog lx w.

Lub cheeb tsam ntawm cross section yog dab tsi?

Hla ntu ntu yog ib cheeb tsam ntawm ib yam khoom yog tias koj saib nws li 2D khoom. Piv txwv li, xav txog ib lub pob zoo kawg nkaus.

Pom zoo: