Koj ua pov thawj tias daim duab peb sab zoo li cas?
Koj ua pov thawj tias daim duab peb sab zoo li cas?

Video: Koj ua pov thawj tias daim duab peb sab zoo li cas?

Video: Koj ua pov thawj tias daim duab peb sab zoo li cas?
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Yog tias ob khub ntawm cov ces kaum sib npaug hauv ib khub ntawm daim duab peb sab yog congruent, ces cov daim duab peb sab zoo ib yam . Peb paub qhov no vim yog tias ob lub kaum sab xis yog tib yam, ces tus khub thib peb kuj yuav tsum sib npaug. Thaum peb lub kaum sab xis yog txhua qhov sib npaug, peb khub ntawm sab yuav tsum tau sib npaug.

Hais txog qhov no, koj ua pov thawj cov duab zoo sib xws li cas?

Ob daim duab uas muaj tib yam puab hais tias yog zoo sib xws . Thaum ob daim duab yog zoo sib xws , qhov sib piv ntawm qhov ntev ntawm lawv qhov sib thooj yog sib npaug. Txhawm rau txiav txim siab yog tias daim duab peb sab hauv qab no zoo sib xws , sib piv lawv cov sib raug zoo sab.

Ib tug kuj yuav nug, SAS Similarity Theorem yog dab tsi? SAS Similarity Theorem : Yog tias lub kaum sab xis ntawm ib daim duab peb sab sib haum rau lub kaum sab xis ntawm lwm daim duab peb sab thiab qhov ntev ntawm ob sab nrog rau cov ces kaum yog nyob rau hauv kev faib ua feem, ces cov duab peb sab zoo ib yam.

Hauv qhov no, koj ua pov thawj li cas AA zoo sib xws?

AA zoo sib xws : Yog tias ob lub kaum sab xis ntawm ib daim duab peb sab sib npaug rau ob lub kaum sab xis ntawm lwm daim duab peb sab, ces ob daim duab peb sab zoo ib yam. Cov ntaub ntawv pov thawj: Cia ΔABC thiab ΔDEF yog ob daim duab peb sab xws li ∠A = ∠D thiab ∠B = ∠E. Yog li ob daim duab peb sab yog sib npaug thiab yog li lawv zoo sib xws los ntawm AA.

Dab tsi yog 3 daim duab peb sab zoo sib xws theorems?

Cov duab peb sab zoo sib xws yog ib qho yooj yim los txheeb xyuas vim tias koj tuaj yeem siv peb lub theorems tshwj xeeb rau daim duab peb sab. Peb lub theorems no, hu ua Lub kaum sab xis - Lub kaum sab xis (UA), Sab - Lub kaum sab xis - Sab (SAS), thiab Sab - Sab - Sab ( SSS ), yog txoj hauv kev tsis zoo rau kev txiav txim siab zoo sib xws hauv daim duab peb sab.

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