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.