Muaj peb hom kev sib koom ua ke ntawm kev hloov pauv:
- Kev txhais lus (a slide)
- Kev tig (ib tig)
- Reflection (ib tug flip)
Yuav ua li cas hloov pauv ib txwm ua rau cov duab sib xws?
Peb tam sim no paub tias kev hloov pauv nruj (kev xav, kev txhais lus thiab kev sib hloov) khaws qhov loj thiab cov duab ntawm cov duab. Ntawd yog, daim duab ua ntej thiab daim duab yeej ib txwm sib haum.
Kev hloov pauv dab tsi tsis ua rau muaj kev sib koom ua ke?
2 Teb Los Ntawm Cov Kws Qhia Ntawv
Kev xaiv tsuas yog hloov pauv qhov loj ntawm daim duab yog tsab ntawv a) dilation thiab yog li ntawd, tsim ob daim duab uas tsis sib haum. Lwm qhov kev xaiv peb tsuas yog "txav" ib qho duab mus rau qhov chaw tshiab (piv txwv li tig, txhais, lossis xav txog) thiab ua rau muaj qhov sib koom ua ke.
Yuav ua li cas ntawm kev hloov pauv ua ib daim duab zoo sib xws?
Cov kev hloov pauv uas ib txwm tsim cov duab sib xws yog Kev txhais, kev xav, thiab kev sib hloov. Cov kev hloov pauv no yog isometric, yog li, cov duab tsim tau ib txwm sib haum xeeb rau cov duab qub. Kev hloov pauv uas qee zaum tsim cov duab sib xws yog dilation.
Kev hloov pauv dab tsi qhia pom tias muaj kev sib haum xeeb?
Qhov kev hloov pauv twg yuav ua rau muaj cov duab sib xws? Kev sib hloov, kev xav, thiab kev txhais lus yog isometric. Qhov ntawd txhais tau hais tias cov kev hloov pauv no tsis uahloov qhov loj ntawm daim duab. Yog hais tias qhov loj thiab cov duab ntawm daim duab tsis hloov, ces cov duab yog congruent.
