Qhov txawv ntawm thaj chaw saum npoo thiab thaj tsam sab nraud yog dab tsi?
Qhov txawv ntawm thaj chaw saum npoo thiab thaj tsam sab nraud yog dab tsi?

Video: Qhov txawv ntawm thaj chaw saum npoo thiab thaj tsam sab nraud yog dab tsi?

Video: Qhov txawv ntawm thaj chaw saum npoo thiab thaj tsam sab nraud yog dab tsi?
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Cov thaj chaw sab nrauv yog cov cheeb tsam ntawm txhua sab tsis suav nrog cheeb tsam ntawm lub hauv paus. Tag nrho thaj chaw saum npoo ntawm tej khoom yog qhov sum ntawm thaj chaw ntawm tag nrho cov ntsej muag ntawm cov khoom khov.

Yog li ntawd, puas yog thaj chaw sab nraud tib yam li thaj chaw saum npoo?

Lesson Summary Lub thaj chaw sab nrauv yog cov thaj chaw saum npoo ntawm ob sab ntawm daim duab peb sab. Txhua daim duab yuav muaj lub hauv paus sib txawv, tab sis cov thaj chaw sab nrauv isfound lub ib yam txoj kev.

Qhov thib ob, qhov sib txawv ntawm thaj chaw thiab thaj chaw saum npoo yog dab tsi? 1. Lub sij hawm cheeb tsam yog ib lo lus dav dav uas qhia qhov ntsuas qhov loj ntawm a nto , thaum thaj chaw saum npoo yog tsim nyog siv los qhia qhov ntsuas ntawm qhov raug nto ntawm ib yam khoom khoom. 2. Thaj chaw yog rau 2-dimensional tiaj tus, thaum thaj chaw saum npoo isfor 3-dimensional solids.

Tsis tas li ntawd, thaj chaw sab nrauv yog dab tsi?

Cov sab nrauv ntawm ib yam khoom yog qhov cheeb tsam ntawm txhua sab ntawm cov khoom, tsis suav nrog cheeb tsam ntawm nws lub hauv paus thiab sab saum toj. Rau lub kub, lub lateral qhov chaw yuav yog cheeb tsam ntawm plaub sab. Rau lub tog raj kheej txoj cai ntawm lub vojvoog r thiab qhov siab h, lub thaj tsam sab nraud yog cov cheeb tsam ntawm sab nto ntawm lub tog raj kheej: A = 2πrh.

Dab tsi yog qhov txawv ntawm thaj chaw saum npoo thiab ntim?

Qhov chaw saum npoo yog qhov sum ntawm thaj chaw ntawm tag nrho cov ntsej muag ntawm lub cev muaj zog. Nws yog ntsuas nyob rau hauv square units. Ntim yog tus naj npawb ntawm cubic units uas tsim ib tug solidfigure.

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