Puas yog kev txhais lus tsim cov duab zoo sib xws?
Puas yog kev txhais lus tsim cov duab zoo sib xws?

Video: Puas yog kev txhais lus tsim cov duab zoo sib xws?

Video: Puas yog kev txhais lus tsim cov duab zoo sib xws?
Video: Da Vang - Puas Yog Nyuab2 Koj (nkauj tawm tshiab 2021) 2024, Tej zaum
Anonim

Rotations, reflections, thiab txhais lus yog isometric. Qhov ntawd txhais tau tias cov kev hloov pauv no ua tsis hloov qhov loj ntawm lub daim duab . Yog qhov loj thiab cov duab ntawm lub daim duab yog tsis hloov, ces tus cov duab yog kev sib haum xeeb.

Nyob rau hauv tas li ntawd, ib tug dilation puas ib txwm tsim ib tug congruent daim duab?

A) dilation . Piav: To tsim ib daim duab congruent , lub kaum sab xis ntsuas ntawm daim duab thiab sab ntev ntawm daim duab yuav tsum yog tib yam li lub kaum sab xis ntsuas thiab sab ntev ntawm daim duab ua ntej. Qhov no txhais tau tias peb tsis tuaj yeem txo qis, nthuav dav, lossis cog lus rau daim duab ; los ntawm txhais cov kev hloov pauv hloov qhov loj.

Tsis tas li ntawd, dab tsi yog congruent figures? Ob polygons yog kev sib haum xeeb yog tias lawv yog tib qhov loj thiab cov duab - uas yog, yog tias lawv cov kaum sab xis 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.

Tib neeg kuj nug, koj yuav txiav txim siab li cas yog tias ob daim duab sib koom ua ke siv kev hloov pauv?

Piav koj lub laj thawj. Yog koj muaj ob daim duab sib dhos , koj ua tau txiav txim tus kev hloov pauv , los yog series kev hloov pauv , maps ib daim duab mus rau lwm qhov los ntawm kev txheeb xyuas qhov taw qhia lossis qhov txheeb ze ntawm qhov cov duab . Daim ntawv ceeb toom cov ntu tab tom ntsib tib txoj kev.

Cov kev xav puas sib haum xeeb?

Reflected triangles tuaj yeem ua tau kev sib haum xeeb Ua kev sib haum xeeb ob daim duab peb sab yuav tsum yog tib yam duab thiab loj. Txawm li cas los xij, ib daim duab peb sab tuaj yeem cuam tshuam, uas yog, tig mus rau lwm qhov. Tsuav lawv tsis zoo ib yam, daim duab peb sab tseem kev sib haum xeeb.

Pom zoo: