Formula rau ntim ntawm ib tug polygonal prism?

Cov txheej txheem:

Formula rau ntim ntawm ib tug polygonal prism?
Formula rau ntim ntawm ib tug polygonal prism?
Anonim

Cov mis rau qhov ntim ntawm lub prism yog V=Bh, qhov B yog thaj chaw hauv paus thiab h yog qhov siab.

Yuav ua li cas ntsuas qhov ntim ntawm lub prism?

Ib daim duab plaub yog daim duab 3D nrog 6 lub ntsej muag. Txhawm rau nrhiav qhov ntim ntawm cov duab plaub, muab nws 3 qhov ntev: ntev x dav x qhov siab. Qhov ntim tau qhia hauv cubic units.

Yuav ua li cas koj thiaj nrhiav tau qhov ntim ntawm lub polygon?

Whereas cov qauv yooj yim rau thaj tsam ntawm cov duab plaub yog qhov ntev × dav, cov qauv yooj yim rau ntim yog length × width × height.

Tus qauv rau ntim ntawm lub tog raj kheej yog dab tsi?

Cov mis rau qhov ntim ntawm ib lub tog raj kheej yog V=Bh lossis V=πr2h. Lub vojvoog ntawm lub tog raj kheej yog 8 cm thiab qhov siab yog 15 cm. Hloov 8 rau r thiab 15 rau h hauv cov qauv V=πr2h.

Yuav ua li cas yog formula rau pawg?

Mass yeej ib txwm tas li rau lub cev. Ib txoj hauv kev los xam cov huab hwm coj: Mass=ntim × ntom. Qhov hnyav yog qhov ntsuas ntawm lub gravitational quab yuam ua rau ib pawg.

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