Video: Lub ntsiab lus ntawm congruent ces kaum yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov Angles muaj ib yam lub kaum sab xis (hauv degrees lossis radians). Qhov ntawd yog tag nrho. Cov no lub kaum sab xis yog kev sib haum xeeb . Lawv tsis tas yuav taw tes rau tib qho kev taw qhia. Lawv tsis tas yuav nyob ntawm cov kab sib xws.
Hais txog qhov no, nws txhais li cas thaum cov duab zoo sib xws?
Raws nraim qhov loj me thiab puab . Kev sib haum xeeb sab los yog ntu muaj qhov ntev tib yam. Kev sib haum xeeb cov ces kaum muaj qhov ntsuas tib yam. Rau tej txheej kev sib haum xeeb Cov duab geometric, sib thooj sab, cov ces kaum, ntsej muag, thiab lwm yam kev sib haum xeeb.
Tsis tas li ntawd, koj ua li cas congruent? Ob daim duab peb sab yog kev sib haum xeeb yog tias lawv muaj: raws nraim tib yam peb sab thiab. raws nraim tib lub kaum sab xis.
Muaj tsib txoj hauv kev los nrhiav yog tias ob daim duab peb sab sib dhos: SSS, SAS, ASA, AAS thiab HL.
- SSS (sab, sab, sab)
- SAS (sab, kaum sab xis, sab)
- ASA (lub kaum sab xis, sab, kaum sab xis)
- AAS (lub kaum sab xis, sab, sab)
- HL (hypotenuse, ceg)
Tsuas yog li ntawd, lub ntsiab lus ntawm congruency yog dab tsi?
Kev sib haum xeeb . Txhais : Sib npaug ntawm qhov loj thiab cov duab. Ob yam khoom yog kev sib haum xeeb yog tias lawv muaj qhov ntev thiab zoo tib yam. Yooj yim heev, koj tuaj yeem xav txog nws li lub ntsiab lus 'sib npaug', tab sis nws muaj qhov tseeb heev lub ntsiab lus uas koj yuav tsum nkag siab tag nrho, tshwj xeeb tshaj yog rau cov duab nyuaj xws li polygons.
Dab tsi ntawm cov ces kaum yog congruent?
Thaum ob kab intersected los ntawm transversal yog parallel, coj mus cov ces kaum yog congruent , hloov sab hauv cov ces kaum yog congruent , hloov sab nrauv cov ces kaum yog congruent , thiab sib law liag sab hauv lub kaum sab xis ua ntxiv, uas txhais tau tias lawv muaj qhov sib npaug ntawm 180 degrees.
Pom zoo:
Lub ntsiab lus ntawm lub hauv paus lo lus meter nyob rau hauv lo lus tus pas ntsuas kub yog dab tsi?
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