Video: Yuav ua li cas koj parallel kab txiav los ntawm ib tug transversal?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Yog ob kab sib npaug yog txiav los ntawm ib tug transversal , sab hauv cov ces kaum ntawm tib sab ntawm lub kev hloov pauv yog supplementary. Yog ob kab yog txiav los ntawm ib tug transversal thiab cov ces kaum sab hauv ntawm tib sab ntawm lub kev hloov pauv yog supplementary, cov kab yog thaum uas tig mus.
Tsis tas li ntawd, yuav ua li cas tshwm sim thaum lub transversal hla cov kab sib txuas?
Ua ntej, yog tias a kev hloov pauv sib tshuam ob kab yog li ntawd cov ces kaum sib haum xeeb, ces tus kab yog thaum uas tig mus . Thib ob, yog tias a kev hloov pauv sib tshuam ob kab yog li ntawd sab hauv cov ces kaum ntawm tib sab ntawm lub kev hloov pauv yog supplementary, ces cov kab yog thaum uas tig mus.
Tsis tas li ntawd, qhov kev sib raug zoo ntawm lub kaum sab xis yog dab tsi? Nyob rau txhua qhov ntawm cov kab sib txuas uas nyob ib sab yog ntxiv. Cov ces kaum muaj cov npe tshwj xeeb txheeb xyuas lawv txoj haujlwm nrog kev hwm rau cov kab sib txuas thiab transversal. Lawv yog cov ces kaum sib raug , alternate interior angles, los yog alternate exterior angles. Lub kaum sab xis yog congruent rau nws matched lub kaum sab xis.
Ib sab ntawm qhov no, dab tsi yog lub kaum sab xis kev sib raug zoo tsim thaum 2 kab sib dhos raug txiav los ntawm kev hloov pauv?
Hloov sab hauv lub kaum sab xis ob lub kaum sab xis nyob rau hauv lub sab hauv kab sib npaug , thiab ntawm opposite (alternate) sab ntawm kev hloov pauv . Hloov sab nrauv lub kaum sab xis yog tsis nyob ib sab thiab congruent. Sib raug lub kaum sab xis ob lub kaum sab xis , ib tug nyob rau hauv lub sab hauv thiab ib tug sab nrauv, uas yog nyob rau tib sab ntawm lub kev hloov pauv.
Ib txoj kab transversal puas tuaj yeem yog perpendicular?
Lus txhais: A kab uas txiav hla ob lossis ntau dua (feem ntau yog sib npaug) kab . Hauv daim duab hauv qab no, lub kab AB is a kev hloov pauv . Nws txiav hla lub parallel kab PQ thiab RS. Yog nws hla lub parallel kab ntawm txoj cai kaum nws yog hu ua a perpendicular transverse.
Pom zoo:
Yuav ua li cas koj txiav txim siab yog hais tias ib tug muaj nuj nqi muaj ib tug kab rov tav tangent?
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Yuav ua li cas koj nrhiav tau txoj kab nqes ntawm ib tug parallel thiab perpendicular kab?
Txhawm rau nrhiav txoj kab nqes ntawm txoj kab no peb yuav tsum tau txais txoj kab rau hauv txoj kab nqes-intercept daim ntawv (y = mx + b), uas txhais tau tias peb yuav tsum tau daws rau y: Qhov nqes hav ntawm kab 4x - 5y = 12 yog m = 4 / 5. Yog li ntawd, txoj kab nqes ntawm txhua kab uas tig mus rau kab no yuav tsum yog m = 4/5. Ob kab yog perpendicular yog tias