Video: Dab tsi theorem ua pov thawj tias ob kab sib npaug?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Yog ob kab yog txiav los ntawm ib tug transversal thiab coj cov ces kaum yog congruent, ces tus kab yog parallel . Yog ob kab yog txiav los ntawm ib tug transversal thiab alternate sab hauv cov ces kaum yog congruent, ces tus kab yog parallel.
Tsis tas li ntawd, dab tsi theorem proves kab yog parallel?
Theorem 10.8: ob kab yog txiav los ntawm ib tug transversal thiaj li alternate sab hauv cov ces kaum yog congruent, ces cov no kab yog parallel . Theorem 10.9: ob kab yog txiav los ntawm ib tug transversal thiaj li alternate sab nrauv ces kaum congruent, ces cov no kab yog parallel.
Ib yam li ntawd, koj puas tuaj yeem ua pov thawj tias kab a thiab b yog sib npaug? Yog ob kab yog txiav los ntawm ib tug transversal thiab cov ces kaum sab nrauv yog sib npaug, ces ob kab yog thaum uas tig mus . Yog li yog ∠ B thiab ∠L yog sib npaug (los yog congruent), lub kab yog thaum uas tig mus . Koj ua tau tseem tsuas xyuas ∠C thiab ∠K; yog lawv congruent, cov kab yog thaum uas tig mus.
Cov neeg tseem nug, koj ua li cas ua pov thawj ob kab yog sib npaug?
Thawj yog yog tias cov ces kaum sib thooj, cov ces kaum uas nyob rau tib lub ces kaum ntawm txhua qhov kev sib tshuam, sib npaug, ces cov kab yog parallel . Qhov thib ob yog yog tias cov ces kaum sab hauv, cov ces kaum uas nyob rau sab nraud ntawm lub transversal thiab sab hauv. kab sib npaug , yog sib npaug, ces tus kab yog parallel.
Puas yog cov kab sib txuas sib txuas?
Yog ob kab sib npaug yog txiav los ntawm ib tug transversal, alternate sab hauv ces kaum yog kev sib haum xeeb . Yog ob kab yog txiav los ntawm ib tug transversal thiab alternate sab hauv cov ces kaum yog kev sib haum xeeb , cov kab yog parallel.
Pom zoo:
Yuav daws qhov tsis sib npaug ntawm cov kab sib npaug thiab cov kab sib npaug sib npaug li cas?
Kev daws qhov tsis sib npaug ntawm qhov sib npaug yog zoo ib yam li kev daws cov kab sib npaug. Qhov sib txawv tseem ceeb yog koj tig lub cim tsis sib xws thaum faib lossis muab faib los ntawm tus lej tsis zoo. Graphing linear inequalities muaj ob peb qhov sib txawv ntxiv. Qhov uas yog qhov ntxoov ntxoo muaj xws li qhov tseem ceeb uas qhov kev tsis sib xws ntawm cov kab tawm muaj tseeb
Koj ua pov thawj li cas cov kab yog sib npaug hauv cov ntawv pov thawj?
Thawj yog yog tias cov ces kaum sib thooj, cov ces kaum uas nyob rau tib lub ces kaum ntawm txhua qhov kev sib tshuam, sib npaug, ces cov kab sib npaug. Qhov thib ob yog yog tias qhov sib txawv sab hauv lub kaum sab xis, cov ces kaum uas nyob rau sab nraud ntawm lub transversal thiab sab hauv cov kab sib npaug, sib npaug, ces cov kab sib npaug
Dab tsi pov thawj siv cov duab ntawm lub dav hlau sib koom ua pov thawj cov khoom geometric?
Cov ntaub ntawv pov thawj uas siv cov duab ntawm lub dav hlau sib koom ua pov thawj geometric zog yog hu ua trigonometric
Nws puas yuav ua rau pom qhov sib npaug ntawm kab sib npaug mus rau ib kab thiab los ntawm ib qho taw tes ntawm kab?
Qhov sib npaug ntawm ib kab uas yog parallel lossis perpendicular rau ib kab? Cov lus teb tau: Cov nqes hav ntawm cov kab sib npaug sib npaug. Hloov txoj kab nqes paub thiab cov kev sib koom ua ke ntawm ib qho taw tes ntawm lwm txoj kab rau hauv daim ntawv point-slope kom pom qhov sib npaug ntawm kab sib npaug
Dab tsi yog qhov sib txawv ntawm cov kab lus sib npaug thiab qhov sib npaug sib npaug?
Cov kab lus sib npaug muaj qhov muaj txiaj ntsig zoo ib yam tab sis tau nthuav tawm nyob rau hauv ib hom ntawv sib txawv uas siv cov khoom ntawm cov lej xws li ax + bx = (a + b) x yog cov kab lus sib npaug. nruj me ntsis, lawv tsis yog 'sib npaug', yog li peb yuav tsum siv 3 kab sib luag hauv 'sib npaug' es tsis yog 2 raws li qhia ntawm no