Cov txheej txheem:

Yuav ua li cas koj pom qhov nruab nrab thiab nruab nrab ntawm daim duab peb sab?
Yuav ua li cas koj pom qhov nruab nrab thiab nruab nrab ntawm daim duab peb sab?

Video: Yuav ua li cas koj pom qhov nruab nrab thiab nruab nrab ntawm daim duab peb sab?

Video: Yuav ua li cas koj pom qhov nruab nrab thiab nruab nrab ntawm daim duab peb sab?
Video: tos koj hauv nruab dab - nuj xeem - nkauj tawm tshiab fullMV 2021 2024, Kaum ib hlis
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Mus nrhiav tus centroid ntawm ib daim duab peb sab , nws yog qhov yooj yim tshaj los kos tag nrho peb cov neeg nruab nrab thiab nrhiav lawv qhov chaw ntawm kev sib tshuam. Kos tus nruab nrab ntawm a daim duab peb sab , xub nrhiav qhov nruab nrab ntawm ib sab ntawm lub daim duab peb sab . Kos ib kab ntu uas txuas qhov taw tes no mus rau qhov rov qab vertex.

Ua kom pom qhov no, koj yuav pom qhov nruab nrab ntawm kab ntu li cas?

Cov qhov nruab nrab yog qhov point ntawm qhov ntu ib nrab ntawm cov ntsiab lus kawg. Nws yuav yog rooj plaub uas tus midpoint ntawm ib ntu tuaj yeem nrhiav tau yooj yim los ntawm kev suav. Yog tias ntu yog kab rov tav lossis ntsug, koj tuaj yeem nrhiav qhov nruab nrab los ntawm kev faib qhov ntev ntawm cov ntu los ntawm 2 thiab suav tus nqi ntawd los ntawm ib qho ntawm qhov kawg.

Kuj Paub, Kuv yuav nrhiav qhov nruab nrab li cas? Cov nruab nrab kuj yog tus naj npawb uas yog ib nrab ntawm lub teeb. Rau nrhiav tus nruab nrab , cov ntaub ntawv yuav tsum tau teem nyob rau hauv kev txiav txim los ntawm tsawg mus rau loj tshaj. Yog hais tias muaj ib tug txawm tus naj npawb ntawm cov khoom nyob rau hauv cov ntaub ntawv teev, ces tus nruab nrab pom los ntawm kev noj qhov nruab nrab (nruab nrab) ntawm ob tus lej nruab nrab.

Koj pom qhov nruab nrab li cas?

Nruab nrab ntawm ib kab Segment

  1. Ntxiv ob qho tib si "x", faib los ntawm 2.
  2. Ntxiv ob qho "y" coordinates, faib los ntawm 2.

Yuav ua li cas rau koj nrhiav thaj tsam ntawm daim duab peb sab?

Rau nrhiav tus cheeb tsam ntawm a daim duab peb sab , muab lub hauv paus los ntawm qhov siab, thiab muab faib los ntawm 2. Kev faib los ntawm 2 los ntawm qhov tseeb tias ib qho parallelogram tuaj yeem muab faib ua 2 daim duab peb sab . Piv txwv li, nyob rau hauv daim duab mus rau sab laug, lub cheeb tsam ntawm txhua tus daim duab peb sab yog sib npaug rau ib nrab ntawm cheeb tsam ntawm parallelogram.

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