Video: Puas yog cov kaum sab nrauv sib npaug?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
A co - sab nrauv lub kaum sab xis yuav luag tib yam li co - sab hauv: ob lub kaum sab xis nyob rau tib sab ntawm lub transversal nyob rau hauv ib daim duab uas ob parallel kab yog intersected los ntawm transversal. Lawv yog sab nrauv cov ces kaum txhais tau tias lawv yog sab nraud ntawm ob kab sib npaug sib npaug rau sab hauv lub kaum sab xis uas yog ob kab sib luag.
Tsuas yog li ntawd, dab tsi yog qhov sum ntawm co sab nrauv ces kaum?
Ob lub kaum sab nrauv sab nrauv rau cov kab sib txuas thiab ntawm tib sab ntawm txoj kab transversal yog hu ua tib-sab sab nrauv cov ces kaum. Cov theorem hais tias tib-sab sab nrauv cov ces kaum yog ntxiv, txhais tau tias lawv muaj qhov sib npaug ntawm 180 degrees.
Ib sab saum toj no, sab nrauv alternate kaum sib npaug? Hloov sab nrauv Angles . hu ua Hloov sab nrauv Angles . Thaum ob kab sib npaug Hloov sab nrauv Angles yog sib npaug.
Tom qab ntawd, cov kaum sab hauv puas sib npaug?
Hauv txhua daim duab kos ob cim lub kaum sab xis hu ua alternate lub kaum sab xis (vim lawv nyob ntawm lwm sab ntawm lub transversal). Yog hais tias cov kab AB thiab CD yog parallel, ces nws yog pom tseeb tias cov co - sab hauv cov ces kaum tsis yog sib npaug tab sis nws hloov tawm tias lawv yog cov ntxiv, uas yog, lawv cov lej yog 180 °.
Cov kaum sab nrauv puas ntxiv txog 180?
Sab nrauv Angles yog tsim nyob qhov twg ib tug transversal hla ob (feem ntau parallel) kab. Txhua khub ntawm no lub kaum sab xis nyob rau sab nraud ntawm cov kab sib txuas, thiab nyob rau tib sab ntawm lub transversal. Pom tias ob sab nrauv cov ces kaum qhia yog ntxiv ( ntxiv rau 180 °) yog cov kab PQ thiab RS yog sib npaug.
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
Puas yog txhua qhov sib npaug sib npaug sib npaug?
Thawj qhov sib npaug sib npaug yog qhov tseeb yog tias nws muaj kev txuag kom muaj nuj nqis. Piv txwv li, qhov sib npaug sib cais yeej ib txwm muaj tseeb, txij li lub ntsiab lus lawv yog ntawm daim ntawv: M(y) + N(t) = 0, yog li ϕ(t, y) = A(y) + B(t) yog a khaws cia kom muaj nuj nqis
Puas yog tib sab sab nrauv cov ces kaum ntxiv?
Ob lub kaum sab nrauv sab nrauv rau cov kab sib txuas thiab ntawm tib sab ntawm txoj kab transversal yog hu ua tib-sab sab nrauv cov ces kaum. Lub theorem hais tias tib lub sab sab nrauv cov ces kaum yog ntxiv, txhais tau tias lawv muaj qhov sib npaug ntawm 180 degrees
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
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