Video: Dab tsi yog dilation hauv lej?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
A dilation yog ib qho kev hloov pauv uas tsim cov duab uas zoo ib yam li qhov qub, tab sis yog qhov sib txawv. A dilation stretches los yog shrinks tus thawj daim duab. • Cov lus piav qhia ntawm a dilation suav nrog qhov ntsuas qhov ntsuas (lossis piv) thiab qhov nruab nrab ntawm qhov dilation.
Yog li ntawd, dab tsi yog dilation hauv lej piv txwv?
A dilation yog kev hloov pauv uas hloov qhov loj ntawm daim duab. Nws tuaj yeem ua loj lossis me dua, tab sis cov duab ntawm daim duab tsis hloov. Ua kom tiav a dilation , ob yam yuav tsum tau. Thawj yog qhov chaw nruab nrab (lossis qhov chaw ruaj khov), uas feem ntau tsuas yog hais thaum lub dilation yuav tsum tau kos.
Tom qab ntawd, lo lus nug yog, koj yuav nrhiav tau qhov ntsuas qhov ntsuas li cas? Mus nrhiav ib ntsuas qhov ntsuas nruab nrab ntawm ob daim duab zoo sib xws, nrhiav ob sab sib txuas thiab sau qhov piv ntawm ob sab. Yog tias koj pib nrog daim duab me me, koj ntsuas qhov ntsuas yuav tsawg dua ib. Yog tias koj pib nrog daim duab loj, koj ntsuas qhov ntsuas yuav loj dua ib.
Sib tham, yuav ua li cas rau thaj tsam ntawm daim duab dilated?
Thaj chaw thiab Perimeter ntawm Dilated Figures . Thaum cov duab yog dilated (thaum lawv loj dua los yog me dua), perimeter hloov linearly-nyob rau hauv ncaj proportions nrog ntev-ntev cheeb tsam hloov quadratically-hauv kev faib ua feem rau qhov ntev squared.
Yuav ua li cas koj tsim ib dilation?
Txhawm rau tsim kom muaj qhov loj me nrog qhov ntsuas qhov ntsuas ntawm ''2'': Kos cov kab ncaj nraim txuas txhua qhov vertex mus rau qhov chaw ntawm dilation . Siv lub compass los nrhiav cov ntsiab lus uas yog ob npaug ntawm qhov kev ncua deb ntawm qhov chaw dilation raws li tus thawj vertices. Txuas cov vertices tshiab los tsim cov dilated duab.
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