Video: Vim li cas ho hu ua pob khawm Theorem?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Lub "suav nrog lub kaum sab xis" yog lub kaum sab xis tsim los ntawm ob sab ntawm daim duab peb sab uas tau hais hauv qhov no theorem . Qhov no theorem yog hu ua lub " Hinge Theorem "vim nws ua raws li lub hauv paus ntsiab lus ntawm ob sab uas tau piav qhia hauv daim duab peb sab yog "hinged" ntawm lawv cov vertex. Theorem .)
Ib yam li ntawd, lub ntsiab lus ntawm pob khawm Theorem yog dab tsi?
Hauv geometry, lub pob khawm theorem hais tias yog tias ob sab ntawm ib daim duab peb sab yog congruent rau ob sab ntawm lwm daim duab peb sab, thiab lub kaum sab xis ntawm thawj yog loj dua lub kaum sab xis ntawm lub thib ob, ces lub thib peb sab ntawm thawj daim duab peb sab yog ntev tshaj lub thib peb sab. thib ob daim duab peb sab.
Qhov thib ob, dab tsi yog lub pob khawm theorem Converse siv los qhia? Cov sib tham ntawm pob khawm theorem hais tias yog ob daim duab peb sab muaj ob sab congruent, ces daim duab peb sab nrog ntev thib peb sab yuav muaj ib tug loj lub kaum sab xis ntawm peb sab.
Tom qab ntawd, ib tug kuj yuav nug, dab tsi yog pob khawm theorem lossis SAS Inequality Theorem?
Hinge Theorem (los yog SAS Inequality Theorem ) Cov pob khawm theorem hais tias thaum ob sab ntawm ob daim duab peb sab yog congruent thiab lub kaum sab xis ntawm me me rau ib, ces sab thib peb ntawm daim duab peb sab yuav luv dua lwm tus.
Koj ua qhov pov thawj tsis ncaj li cas?
Hauv ib indirect pov thawj , es tsis txhob qhia tias qhov kev txiav txim siab los ua pov thawj yog qhov tseeb, koj qhia tias tag nrho cov kev hloov pauv tsis yog. Rau ua qhov no, koj yuav tsum xav tias qhov kev tsis pom zoo ntawm nqe lus kom ua pov thawj. Tom qab ntawd, kev txiav txim siab txiav tawm yuav ua rau muaj qhov tsis sib xws: ob nqe lus uas tsis tuaj yeem muaj tseeb.
Pom zoo:
Qhov theorem twg zoo tshaj qhia tias vim li cas Kab J thiab K yuav tsum sib npaug?
Lub converse alternate sab nrauv lub kaum sab xis theorem justifies vim li cas kab j thiab k yuav tsum yog parallel. Lub converse alternate sab nrauv lub kaum sab xis theorem hais tias yog hais tias ob kab yog txiav los ntawm ib tug transversal thiaj li alternate sab nrauv ces kaum yog congruent, ces cov kab yog parallel
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