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Kuv yuav xam qhov chaw ntawm kuv lub pas dej li cas?
Kuv yuav xam qhov chaw ntawm kuv lub pas dej li cas?

Video: Kuv yuav xam qhov chaw ntawm kuv lub pas dej li cas?

Video: Kuv yuav xam qhov chaw ntawm kuv lub pas dej li cas?
Video: Pob Tsuas Xyooj - ncig txog teb qub chaw Music Video 2024, Kaum ib hlis
Anonim

Ntev lub sij hawm dav muab cov thaj chaw saum npoo ntawm pas dej ua ke . Multiplying uas los ntawm qhov nruab nrab qhov tob muab qhov ntim hauv cubic feet. Txij li thaum muaj 7.5 nkas loos hauv txhua qhov cubic taw, muab cov cubic feet ntawm qhov pas dej ua ke los ntawm 7.5 mus txog qhov ntim ntawm lub pas dej ua ke (hais qhia hauv gallons).

Ntawm no, koj yuav nrhiav tau qhov chaw ntawm lub pas dej li cas?

  1. FORMULAS. Surface Area (Circle): Radius x Radius x 3.14 (Radius = Diameter / 2) Surface Area (Rectangle/Square): Length x Dav.
  2. EXAMPLE. Lub pas dej ua ke yog 50 feet ntev ntawm 20 feet dav. Qhov tob tob yog 3 feet tob thiab qhov tob kawg yog 7 feet tob.
  3. Teb. Luas = 1,800 m² Volume = 81,000 Gallons.

Tsis tas li ntawd, kuv lub pas dej muaj pes tsawg square feet? 600 square feet

Ua li no, koj yuav nrhiav tau thaj tsam li cas?

Yuav ua li cas nrhiav thaj tsam ntawm Rectangular Prisms:

  1. Nrhiav thaj tsam ntawm ob sab (Length * Qhov siab) * 2 sab.
  2. Nrhiav thaj tsam ntawm sab uas nyob ib sab (Dav * Qhov siab) * 2 sab.
  3. Nrhiav thaj tsam ntawm qhov kawg (Length * Dav) * 2 kawg.
  4. Ntxiv peb qhov chaw ua ke kom pom thaj chaw saum npoo av.
  5. Piv txwv li: Qhov chaw saum npoo ntawm ib daim duab plaub prism 5 cm ntev, 3 cm.

Yuav ua li cas koj pom thaj tsam ntawm square footage?

Muab qhov ntev los ntawm qhov dav kom tau txais qhov cheeb tsam hauv square feet los yog ntiv tes. Yog tias qhov ntev yog 15 ntiv tes thiab qhov dav yog 20 ntiv tes, ces 15 x 20 = 300 square ntiv tes. Hloov cov lus teb los ntawm square ntiv rau square feet , yog xav tau. Faib tus naj npawb ntawm square rau 144in square footage ntawm cheeb tsam.

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