Tus qauv rau qhov ntim V ntawm lub pyramid yog V=1 3 (qhov chaw hauv paus) (qhov siab) V=\ dfrac{1}{3}(text{base area}) (text{height}) V=31(base area)(height)V, equals, start fraction, 1, divide by, 3, end fraction, left parenthesis, start text, b, a, s, e, space, a, r, e, a, end text, right parenthesis, laug parenthesis, …
Koj pom qhov ntim ntawm lub pyramid li cas?
Tus qauv yog dab tsi los nrhiav qhov ntim ntawm Pyramid? Qhov ntim ntawm lub pyramid yog pom siv tus qauv V=(1/3) Bh, qhov 'B' yog thaj chaw hauv paus thiab 'h' yog qhov siab ntawm lub pyramid.
Vim li cas thiaj muaj 1/3 hauv cov qauv rau qhov ntim ntawm lub pyramid?
Koj yuav pom tias qhov ntim ntawm tag nrho lub voos xwmfab tuaj yeem suav tias yog qhov sib npaug ntawm 2 qhov sib npaug me me (chaw los ntawm ib nrab-qhov siab ntawm lub voos xwmfab). Nws kuj yog qhov qhov siab ntawm pyramid multiplied los ntawm cheeb tsam Lub ntim me me kuj yog qhov sib npaug ntawm 3 pyramids, vim 3 yog ib nrab ntawm 6. Yog li tib lub pyramid yog 1/3rd ntawm qhov kev sib tw.
Dab tsi yog qhov qhia rau qhov ntim ntawm lub pyramid?
Cov ntim dav dav ntawm cov qauv pyramid yog muab raws li: ntim ntawm pyramid=1/3 x puag x qhov siab . Qhov twg Ab=thaj tsam ntawm lub hauv paus polygonal thiab h=qhov siab ntawm lub pyramid.
Dab tsi yog qhov ntim ntawm daim duab peb sab pyramid?
Qhov ntim ntawm daim duab peb sab li niaj zaus tuaj yeem suav nrog muab ntug ntawm daim duab peb sab. Cov mis rau lub ntim ntawm daim duab peb sab yog muab raws li, Volume=a 3/6√2, qhov 'a' yog ntug ntawm daim duab peb sab (equilateral) ntsej muag.
