Video: Dab tsi yog lub ntsiab lus ntawm congruent figures?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Ob polygons yog kev sib haum xeeb yog tias lawv yog tib qhov loj thiab cov duab - uas yog, yog tias lawv cov ces kaum sib npaug thiab sab sib npaug. Txav koj tus cursor nas hla qhov chaw ntawm txhua qhov daim duab sab laug kom pom qhov sib thooj ntawm cov sib fim ntawm sab xis. © 2000-2005 Math.com.
Tsis tas li ntawd, qhov piv txwv zoo sib xws yog dab tsi?
Kev sib haum xeeb . Hauv no piv txwv cov duab yog kev sib haum xeeb (koj tsuas yog yuav tsum tig ib sab thiab txav nws me ntsis). Angles yog kev sib haum xeeb thaum lawv loj tib yam (hauv degrees lossis radians). Sab yog kev sib haum xeeb thaum lawv yog tib qhov ntev.
Ib yam li ntawd, congruent zoo li cas? Hauv geometry, ob daim duab lossis cov khoom yog concruent yog tias lawv muaj cov duab zoo ib yam thiab qhov loj me, lossis yog tias ib tus neeg muaj qhov sib xws thiab loj raws li daim iav duab ntawm lwm tus.
Ib yam li ntawd, txhais li cas ntawm ib daim duab zoo sib xws?
Cov duab zoo sib xws yog cov duab uas muaj qhov zoo ib yam, tab sis yuav muaj qhov sib txawv. Cov hom no cov duab tshwm sim feem ntau nyob rau hauv lub ntiaj teb no nyob ib ncig ntawm peb. Cov duab zoo sib xws yog proportional, yog li thaum ob polygons zoo sib xws , qhov sib piv ntawm lawv cov sab sib thooj yog txhua yam sib npaug.
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:
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