Video: Cov duab peb sab tsis sib xws txhais li cas?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
ob sab, thiab tsis sib haum xeeb txhais tau tias “tsis yog kev sib haum xeeb ,”uas yog, tsis zoo ib yam. (Cov duab uas muaj kev cuam tshuam thiab tig thiab txhais cov ntawv luam ntawm ib leeg yog kev sib haum xeeb shapes.) Yog li peb xav tau daim duab peb sab uas saib zoo sib txawv. Thiab vertex tsuas yog lwm lo lus rau lub ces kaum ntawm cov duab.
Yog li ntawd, dab tsi yog qhov cim ntawm kev tsis sib haum xeeb?
Cov lus ntawm cov cim hauv geometry:
| Cim | Cim npe | Lub ntsiab lus / txhais |
|---|---|---|
| ≅ | sib tham | sib npaug ntawm cov duab geometric thiab qhov loj me |
| ~ | zoo sib xws | tib cov duab, tsis loj loj |
| Δ | daim duab peb sab | daim duab peb sab |
| |x-y| | nyob deb | nrug ntawm cov ntsiab lus x thiab y |
Tsis tas li ntawd, vim li cas SSA tsis yog ib qho kev sib koom ua ke? Plaub luv luv cia cov tub ntxhais kawm paub ob daim duab peb sab yuav tsum yog kev sib haum xeeb : SSS, SAS, ASA, and AAS. Paub tsuas yog sab-sab-lub kaum sab xis ( SSA ) ua tsis yog ua hauj lwm vim hais tias sab tsis paub yuav nyob rau hauv ob qhov chaw sib txawv. Vim tias muaj 6 qhov sib thooj 3 lub kaum sab xis thiab 3 sab, koj tsis tas yuav paub tag nrho lawv.
Ib yam li ib tug yuav nug, muaj pes tsawg daim duab peb sab uas tsis sib haum?
Peb pom tsuas muaj 3 leeg xwb tsis yog - congruent daim duab peb sab ntawm hom no. + + = tsis yog - kev sib haum xeeb hom!
Yuav ua li cas yog lub synonym rau congruent?
Synonyms ntawm ' kev sib haum xeeb ' Cov hom phiaj tshiab no tsis ua raws li cov cai uas twb muaj lawm. zoo ib yam. sib tham. sib raug. ua raws.
Pom zoo:
Puas yog ob txoj kab sib luag zoo sib xws lossis tsis sib xws?
Yog tias ob qhov sib npaug piav txog kab sib luag, thiab yog li cov kab uas tsis sib tshuam, qhov system yog ywj siab thiab tsis sib haum. Yog hais tias ob qhov sib npaug piav txog tib kab, thiab yog li cov kab uas hla tus lej tsis kawg, lub kaw lus yog nyob ntawm thiab sib xws
Koj tuaj yeem ua pov thawj li cas 2 daim duab peb sab zoo sib xws siv lub kaum sab xis sab SAS zoo sib xws postulate?
SAS Similarity Theorem hais tias yog ob sab hauv ib daim duab peb sab yog proportional rau ob sab hauv lwm daim duab peb sab thiab lub kaum sab xis nyob rau hauv ob qho tib si congruent, ces ob daim duab peb sab zoo ib yam. Ib qho kev hloov pauv zoo sib xws yog ib lossis ntau qhov kev hloov pauv tsis tu ncua ua raws li kev dilation
Vim li cas nws thiaj li hais tias lub Orthocenter ntawm daim duab peb sab obtuse yuav tsum nyob rau sab nraud ntawm daim duab peb sab?
Nws hloov tawm tias tag nrho peb qhov siab ib txwm sib tshuam ntawm tib lub ntsiab lus - lub npe hu ua orthocenter ntawm daim duab peb sab. Lub orthocenter tsis yog ib txwm nyob hauv daim duab peb sab. Yog tias daim duab peb sab yog obtuse, nws yuav nyob sab nraud. Txhawm rau ua kom qhov no tshwm sim cov kab qhov siab yuav tsum tau txuas ntxiv kom lawv hla
Cov kws kos duab hu li cas cov duab thiab cov duab siv los sawv cev rau cov yam ntxwv ntawm lub ntiaj teb nto?
Ntiaj Teb Kev Tshawb Fawb - Daim Ntawv Qhia Lub Ntiaj Teb Qhov Nto A B GLOBE Ib puag ncig uas sawv cev rau lub ntiaj teb nto. SCALE Siv los sib piv qhov deb ntawm daim ntawv qhia lossis lub ntiaj teb mus deb ntawm lub ntiaj teb nto. SYMBOLS Ntawm daim duab qhia chaw, cov duab siv los ntawm mapmakers sawv ntsug rau cov yam ntxwv ntawm lub ntiaj teb nto. TSEEM CEEB Ib daim ntawv teev cov cim siv rau ntawm daim ntawv qhia
Dab tsi yog kev sib raug zoo ntawm sab nrauv thiab sab hauv lub kaum sab xis ntawm daim duab peb sab?
Cov kaum sab hauv yog hu ua Sab hauv cov ces kaum. Cov lej ntawm cov kaum sab hauv ntawm daim duab peb sab yog ib txwm 180 degrees. Lub kaum sab nrauv yog lub kaum sab xis ntawm ib sab ntawm ib qho duab, thiab ib txoj kab txuas ntxiv los ntawm sab tom ntej. Qhov sib npaug ntawm lub kaum sab nrauv thiab nws lub kaum sab hauv uas nyob ib sab kuj yog 180 degrees