Cov txheej txheem:

Cov cheeb tsam puas nce nrog Perimeter?
Cov cheeb tsam puas nce nrog Perimeter?

Video: Cov cheeb tsam puas nce nrog Perimeter?

Video: Cov cheeb tsam puas nce nrog Perimeter?
Video: Plab Plab Ntswg..(Pluav Pluav Ntswg) Maiv Twm New Song 2023-2024 2024, Kaum ib hlis
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Cov lus teb luv luv: muab tib yam ib puag ncig , daim duab tsis tu ncua nrog ntau sab yuav npog ntau dua cheeb tsam.

Ib yam li ib tug yuav nug, perimeter puas cuam tshuam rau cheeb tsam?

Tej zaum nws yuav yog qhov ntev ntawm ib sab ntawm lub polygon (ib daim duab nrog ncaj sab) lossis lub vojvoog ntawm lub voj voog. Koj tuaj yeem nrhiav tau ib puag ncig ntawm ib txwm octagon (8-sab daim duab nrog sib npaug sab) los ntawm kev muab qhov ntev ntawm ib sab los ntawm 8. cheeb tsam ntawm ib daim duab yog qhov ntsuas qhov loj npaum li cas nws nto.

Vim li cas thaj chaw hloov thaum ib puag ncig nyob tib yam? Vim lawv muaj cov tib ib puag ncig peb tuaj yeem hais A + B = 2C. yog li cov cheeb tsam ntawm lub square yuav ntau dua ntawm cov duab plaub los ntawm lub square ntawm qhov sib txawv ntawm ob sab ntev.

Ntxiv mus, ib cheeb tsam puas tuaj yeem loj dua ib cheeb tsam?

Thaj chaw luas x luas = 1 x t = t. Tam sim no 2 + 2t yog ib txwm loj dua t. Yog li no PM > A, thaum s = 1. Qhov no txhais tau tias thaum twg koj muaj ib sab li 1, perimeter yuav yuav ib txwm (tus lej) loj dua cheeb tsam.

Yuav ua li cas koj hloov cheeb tsam rau perimeter?

Perimeter ntawm ib daim duab plaub

  1. Nco ntsoov cov qauv rau ib puag ncig thiab thaj tsam ntawm ib daim duab plaub. Qhov cheeb tsam ntawm ib daim duab plaub yog a = ntev * dav, thaum lub perimeter yog p = (2 * ntev) + (2 * dav)
  2. Hloov cov nqi paub rau hauv cov qauv hauv cheeb tsam. 36 = 4x w.
  3. Hloov cov nqi rau qhov ntev thiab qhov dav rau hauv cov qauv perimeter.

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