Video: Dab tsi yog qhov sib thooj ntawm daim duab peb sab congruent?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
CPCTC yog lub ntsiab lus rau sib thooj qhov chaw ntawm congruent triangles yog kev sib haum xeeb . CPCTC feem ntau yog siv los yog ze rau qhov kawg ntawm cov ntawv pov thawj uas hais kom tus menyuam kawm ntawv qhia tias ob lub kaum lossis ob sab yog kev sib haum xeeb . Sib raug txhais tau tias lawv nyob hauv tib txoj hauj lwm hauv 2 daim duab peb sab.
Ib yam li ntawd, nws raug nug, dab tsi yog qhov sib thooj ntawm daim duab peb sab?
Lo lus sib raug hais txog ntu uas phim ntawm ob congruent daim duab peb sab . Koj tuaj yeem txheeb xyuas sib raug kaum thiab sib raug sab . Ua ntej, lub npe sib raug lub kaum sab xis. Sib raug cov ces kaum yog qhov sib piv ntawm ob daim duab peb sab.
Kuj Paub, SSS SAS ASA AAS yog dab tsi? Qhov "suav nrog lub kaum sab xis" hauv SAS yog lub kaum sab xis tsim los ntawm ob sab ntawm daim duab peb sab siv. Qhov "nrog rau sab" hauv ASA yog ib sab ntawm cov ces kaum siv. Thaum daim duab peb sab yog pov thawj congruent, cov seem "qhov" uas tsis tau siv nyob rau hauv SSS , SAS , ASA , AAS thiab HL, kuj muaj kev sib haum xeeb.
Tom qab ntawd, qhov sib txawv ntawm kev sib raug zoo thiab kev sib haum xeeb yog dab tsi?
Raws li adjectives qhov sib txawv ntawm kev sib raug zoo thiab kev sib haum xeeb . yog tias sib raug yog tias muaj kev sib raug zoo sib xws thaum kev sib haum xeeb yog sib raug hauv tus cwj pwm.
Puas yog cov kab sib txuas sib txuas?
Yog ob kab sib npaug yog txiav los ntawm ib tug transversal, cov ces kaum sib raug kev sib haum xeeb . Yog ob kab yog txiav los ntawm ib tug transversal thiab cov ces kaum sib raug kev sib haum xeeb , cov kab yog parallel . Sab hauv Angles ntawm Tib Sab ntawm Transversal: Lub npe yog ib qho kev piav qhia ntawm "qhov chaw" ntawm cov ces kaum no.
Pom zoo:
Dab tsi yog equidistant los ntawm peb sab ntawm daim duab peb sab?
Lub ntsiab lus uas sib npaug rau txhua sab ntawm daim duab peb sab yog hu ua incenter: Ib qho nruab nrab yog ib qho kab uas muaj ib qho ntawm nws qhov kawg ntawm lub vertex ntawm daim duab peb sab thiab lwm qhov kawg ntawm qhov nruab nrab ntawm sab opposite lub vertex. Peb qhov nruab nrab ntawm ib daim duab peb sab sib ntsib hauv centroid
Koj tuaj yeem ua pov thawj li cas 2 daim duab peb sab zoo sib xws siv lub kaum sab xis sab SAS zoo sib xws postulate?
SAS Similarity Theorem hais tias yog ob sab hauv ib daim duab peb sab yog proportional rau ob sab hauv lwm daim duab peb sab thiab lub kaum sab xis nyob rau hauv ob qho tib si congruent, ces ob daim duab peb sab zoo ib yam. Ib qho kev hloov pauv zoo sib xws yog ib lossis ntau qhov kev hloov pauv tsis tu ncua ua raws li kev dilation
Dab tsi yog qhov sib thooj ntawm daim duab peb sab sib dhos?
Qhov sib thooj ntawm daim duab peb sab sib dhos yog Congruent Nws txhais tau hais tias yog tias ob lub trangles paub tias muaj kev sib haum xeeb, ces tag nrho cov kaum sab xis / ob sab kuj sib haum. Piv txwv li, yog tias 2 daim duab peb sab yog congruent los ntawm SSS, ces peb kuj paub tias cov ces kaum ntawm 2 daim duab peb sab yog congruent
Vim li cas nws thiaj li hais tias lub Orthocenter ntawm daim duab peb sab obtuse yuav tsum nyob rau sab nraud ntawm daim duab peb sab?
Nws hloov tawm tias tag nrho peb qhov siab ib txwm sib tshuam ntawm tib lub ntsiab lus - lub npe hu ua orthocenter ntawm daim duab peb sab. Lub orthocenter tsis yog ib txwm nyob hauv daim duab peb sab. Yog tias daim duab peb sab yog obtuse, nws yuav nyob sab nraud. Txhawm rau ua kom qhov no tshwm sim cov kab qhov siab yuav tsum tau txuas ntxiv kom lawv hla
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