Cov duab peb sab zoo sib xws yog cov uas lawv cov ces kaum yog congruent thiab cov sab sib thooj yog nyob rau hauv proportions. Raws li peb paub tias cov ces kaum sib npaug ntawm daim duab peb sab sib npaug sib npaug, yog li ntawd txhais tau hais tias txhua daim duab peb sab sib npaug sib npaug.
Ib yam li ntawd, daim duab peb sab twg ib txwm zoo sib xws? Isosceles daim duab peb sab tsis yog ib txwm zoo sib xws, tab sis vaj huam sib luag cov duab peb sab yeej ib txwm zoo sib xws.
Dab tsi yog txhais los ntawm daim duab peb sab zoo sib xws? Yog tias ob lub kaum sab xis ntawm daim duab peb sab muaj qhov sib npaug ntawm qhov ntsuas ntawm ob lub kaum sab xis ntawm lwm daim duab peb sab, ces cov duab peb sab zoo ib yam. Qhov sib thooj ntawm cov polygons zoo sib xws yog nyob rau hauv kev faib ua feem, thiab cov ces kaum sib xws ntawm cov polygons zoo sib xws muaj qhov ntsuas tib yam.
Cov duab peb sab twg zoo sib xws? Raws li peb paub yog tias ob lub kaum sab xis ntawm ib daim duab peb sab yog feem sib npaug rau ob lub kaum sab xis ntawm lwm daim duab peb sab, ces ob daim duab peb sab zoo ib yam. Qhov no yog hu ua AA cov qauv rau ob daim duab peb sab. Cov khub ntawm cov ces kaum sib npaug ntawm daim duab peb sab yog sib npaug.
Thib ob Vim li cas cov duab peb sab sib npaug zoo sib xws? Zoo sib xws. Ib qho cuab yeej ntawm daim duab peb sab sib npaug suav nrog txhua yam ntawm lawv cov ces kaum sib npaug li 60 degrees. … Txij li thaum txhua daim duab peb sab sib npaug lub kaum sab xis yog 60 degrees, txhua daim duab peb sab sib npaug zoo ib yam vim qhov AAA Postulate.
Puas yog txhua daim duab peb sab sib npaug piav qhia?
Cov cuab yeej ntawm daim duab peb sab sib npaug suav nrog tias tag nrho lawv cov kaum sab xis sib npaug li 60 degrees. …Vim txhua qhov sib npaug ntawm daim duab peb sab lub kaum sab xis yog 60 degrees, txhua qhov sib npaug daim duab peb sab zoo ib yam vim qhov no AAA Postulate.
ces Puas muaj cov duab peb sab zoo sib xws? Cov duab peb sab zoo sib xws muaj tib lub kaum sab xis ntsuas thiab proportional sab lengths.
Dab tsi yog qhov zoo sib xws thiab sib npaug daim duab peb sab? Hauv lej, peb hais li ntawd ob yam khoom zoo sib xws yog tias lawv muaj qhov zoo ib yam, tab sis tsis tas tib qhov loj me. … Yog hais tias cov khoom kuj muaj qhov loj me, lawv sib haum.
Qhov zoo sib xws txhais li cas hauv lej?
geometry. (ntawm cov duab) muaj qhov zoo ib yam; muaj cov sab sib thooj proportional thiab coj cov ces kaum sib npaug: daim duab peb sab zoo sib xws. Kawm lej. (ntawm ob lub square matrices) cuam tshuam los ntawm kev hloov pauv zoo sib xws.
Kev sib piv lej yog dab tsi? Ob daim duab tau hais tias zoo sib xws yog tias lawv zoo ib yam. Hauv cov lus lej ntau dua, ob daim duab zoo sib xws yog tias lawv cov ces kaum sib haum xeeb , thiab qhov sib piv ntawm qhov ntev ntawm lawv qhov sib thooj yog sib npaug.
Vim li cas cov duab peb sab zoo sib xws tseem ceeb?
Similar Triangles yog muaj txiaj ntsig zoo rau kev txiav txim siab tsis ncaj ntawm qhov ntau thiab tsawg ntawm cov khoom uas nyuaj rau kev ntsuas los ntawm tes. Cov piv txwv muaj xws li lub tsev qhov siab, tsob ntoo qhov siab, thiab ntauwd qhov siab. Zoo sib xws Daim duab peb sab kuj siv tau los ntsuas qhov dav ntawm tus dej los yog pas dej.
Cov duab peb sab twg zoo ib yam li daim duab peb sab A? AA (los yog AAA) los yog Angle-Angle Similarity
If ob lub kaum sab xis ntawm daim duab peb sab yog sib npaug rau ob lub kaum sab xis ntawm lwm daim duab peb sab, ces ob daim duab peb sab zoo ib yam. Los ntawm daim duab qhia saum toj no, yog ∠ A = ∠X thiab ∠C = ∠Z ces ΔABC ~ ΔXYZ.
Cov duab geometric twg ib txwm zoo sib xws?
Teb: Ob daim duab geometrical uas ib txwm zoo sib xws yog lub voj voog, squares lossis kab ntu.
Ib khub twg ntawm daim duab peb sab tsis zoo sib xws?
Tsis yog, khub ntawm daim duab peb sab tsis zoo sib xws.
Hauv ΔABC , ∠A tau muab tab sis tsis tau muab rau sab AC. Vim li no, ΔABC thiab ΔDEF tsis zoo ib yam.
Puas yog tag nrho cov pentagon zoo sib xws? Tag nrho cov polygon zoo sib xws yog sib haum. Tag nrho cov pentagons tsis tu ncua zoo ib yam.
Puas yog txhua daim duab peb sab sib npaug? Yog lawm. Txhua daim duab peb sab equiangular zoo ib yam. Hauv geometry, peb muaj lub theorem zoo uas tso cai rau peb los txiav txim siab yog tias ob daim duab peb sab zoo sib xws siv cov…
Puas yog equilateral thiab equiangular triangles zoo sib xws?
Ib daim duab peb sab equiangular muaj peb sab sib npaug, thiab nws yog tib yam li daim duab peb sab sib npaug.
Puas yog parallelograms ib txwm zoo sib xws? Qhov no yog yeej ib txwm muaj tseeb. Â Squares yog quadrilaterals nrog 4 congruent sab thiab 4 txoj cai ces kaum, thiab lawv kuj muaj ob pawg ntawm parallel sab. Parallelograms yog quadrilaterals nrog ob pawg ntawm kev sib luag.
Vim li cas cov duab peb sab zoo sib xws?
Ob daim duab peb sab hais tias yog zoo sib xws yog tias lawv cov ces kaum sib raug zoo thiab cov sab sib raug zoo sib xws . Hauv lwm lo lus, cov duab peb sab zoo sib xws yog tib yam, tab sis tsis tas yuav tsum muaj qhov loj me.
Qhov kev ntsuas ntawm qhov zoo sib xws yog siv rau cov duab peb sab zoo sib xws? SAS cov txheej txheem. Los ntawm txhais, ob daim duab peb sab zoo ib yam yog tag nrho lawv cov ces kaum sib raug zoo thiab lawv cov sab sib raug yog proportional.
Qhov zoo sib xws txhais li cas hauv lej?
(ntawm cov duab) muaj qhov zoo ib yam; muaj cov sab sib thooj proportional thiab coj cov ces kaum sib npaug: daim duab peb sab zoo sib xws. Kawm lej. (ntawm ob lub square matrices) cuam tshuam los ntawm kev hloov pauv zoo sib xws.
Dab tsi yog qhov sib txawv tseem ceeb ntawm daim duab peb sab sib dhos thiab cov duab peb sab zoo sib xws? Cov duab peb sab zoo sib xws muaj cov duab zoo ib yam tab sis qhov ntau thiab tsawg yuav txawv tab sis congruent daim duab peb sab muaj tib lub duab thiab loj. Cov duab peb sab sib xyaw yog sawv cev los ntawm lub cim '≅' thaum cov duab peb sab zoo sib xws yog sawv cev los ntawm lub cim '~'.
Dab tsi yog congruence thiab zoo sib xws hauv lej?
Hauv kev ua lej, thiab tshwj xeeb geometry, kev sib haum xeeb thiab kev sib xws yog cov ntsiab lus sib xws. Congruence tseem ceeb txhais tau tias tias ob daim duab lossis cov khoom yog tib yam thiab loj. … Qhov zoo sib xws txhais tau hais tias ob daim duab lossis cov khoom yog tib yam, txawm tias feem ntau tsis yog qhov loj.