Video: Puas yog lub kaum sab xis sab congruent?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov Sab Qab Teb Sab postulate (feem ntau abbreviated li SAS) hais tias yog ob sab thiab suav nrog lub kaum sab xis ntawm ib daim duab peb sab kev sib haum xeeb rau ob sab thiab suav nrog lub kaum sab xis ntawm lwm daim duab peb sab, ces ob daim duab peb sab no yog kev sib haum xeeb.
Ib yam li ntawd, vim li cas lub kaum sab xis tsis sib haum?
Paub xwb sab - sab - lub kaum sab xis ( SSA ) ua tsis yog ua haujlwm vim tsis paub sab tuaj yeem nyob hauv ob qhov chaw sib txawv. Paub xwb lub kaum sab xis - lub kaum sab xis - lub kaum sab xis (AAA) ua tsis yog ua haujlwm vim nws tuaj yeem tsim qhov sib xws tab sis tsis sib haum daim duab peb sab.
Tsis tas li ntawd, cov ces kaum twg congruent? Cov kaum sab xis yog ob lossis ntau dua lub kaum sab xis uas muaj qhov ntsuas tib yam. Hauv cov lus yooj yooj yim, lawv muaj cov lej tib yam. Nws yog ib qho tseem ceeb kom nco ntsoov tias qhov ntev ntawm qhov lub kaum sab xis ' ntug los yog cov kev taw qhia ntawm lub lub kaum sab xis tsis muaj kev cuam tshuam rau lawv txoj kev sib haum xeeb. Tsuav lawv ntsuas sib npaug, cov lub kaum sab xis raug txiav txim siab kev sib haum xeeb.
Yog li ntawd, SSS SAS ASA AAS yog dab tsi?
SSS (sab-sab-sab) Tag nrho peb sab sib txuas yog congruent. SAS (sab-angle-sab) Ob sab thiab lub kaum sab xis ntawm lawv yog congruent. ASA (angle-sib-angle)
Vim li cas lub kaum sab xis ua haujlwm?
SAS theorem hais tias ob daim duab peb sab sib npaug yog tias ob sab thiab cov lub kaum sab xis nruab nrab ntawm ob tus ntawd sab sib npaug. Cov lub kaum sab xis nruab nrab ntawm ob sab tseem hu ua suav nrog lub kaum sab xis . Nws yog ib qho tseem ceeb uas lub kaum sab xis koj siv rau qhov kev xam cheeb tsam nyob nruab nrab ntawm ob sab koj siv rau kev xam.
Pom zoo:
Thaum ib tug transversal cuam tshuam ob kab sib luag uas lub kaum sab xis yog congruent?
Yog hais tias ib tug transversal intersects ob parallel kab, ces alternate sab hauv cov ces kaum yog congruent. Yog hais tias ib tug transversal intersects ob parallel kab, ces tib-sab sab hauv cov ces kaum yog ntxiv
Cov kab lus hloov sab hauv cov ces kaum piav qhia txoj haujlwm ntawm ob lub kaum sab xis li cas?
Hloov sab hauv cov ces kaum yog tsim los ntawm ib tug transversal intersecting ob parallel kab. Lawv nyob nruab nrab ntawm ob qho tib si kab tab sis nyob rau sab nraud ntawm lub transversal, tsim ob khub (plaub tag nrho cov ces kaum) ntawm cov ces kaum sab hauv. Hloov cov ces kaum sab hauv yog congruent, txhais tau tias lawv muaj qhov sib npaug
Puas yog cov kaum sab xis ntawm lub isosceles trapezoid congruent?
Lub hauv paus (sab saum toj thiab hauv qab) ntawm lub isosceles trapezoid yog sib npaug. Sab nraud ntawm ib qho isosceles trapezoid yog tib qhov ntev (kev sib haum xeeb). Lub kaum sab xis ntawm ob sab ntawm lub hauv paus yog tib qhov loj / ntsuas (cuam tshuam)
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
Puas yog daim duab peb sab isosceles muaj ob lub kaum sab xis?
Thaum ib daim duab peb sab muaj ob sab congruent nws hu ua daim duab peb sab isosceles. Lub kaum sab xis ntawm ob sab ntawm tib qhov ntev yog congruent. Ib daim duab peb sab uas tsis muaj ib sab lossis cov kaum sab xis yog hu ua daim duab peb sab scalene