Ib feem ntawm kev hloov pauv yog ua ke ntawm ob lossis ntau qhov kev hloov pauv, txhua qhov ua tiav ntawm daim duab dhau los. Ib tug muaj pes tsawg leeg ntawm reflections nyob rau hauv parallel kab muaj cov nyhuv tib yam li ib tug txhais lus (ob zaug ntawm qhov kev ncua deb ntawm cov parallel kab).
Cov ntaub ntawv puas tuaj yeem sau ua kev hloov pauv?
Kev sau ntawv tuaj yeem sau ua ib txoj cai. Koj tuaj yeem sau txhua qhov kev hloov pauv, tab sis ntawm no yog qee qhov kev sau ntau tshaj plaws: Ib qho kev xav rov qab yog ib qho kev xav ntawm kev xav thiab kev txhais lus. Kev txhais lus yog nyob rau hauv ib qho kev coj mus rau lub kab ntawm kev xav.
Vim li cas peb thiaj siv cov kev sib xyaw ntawm kev hloov pauv?
Ib feem ntawm kev hloov pauv yog ua ntau dua ib qho kev hloov pauv tsis zoo ntawm daim duab … Reflections over Parallel Lines Theorem: Yog tias koj sau ob qhov kev xav ntawm cov kab sib txuas uas yog \begin{align}h\end{align} units sib nrug, nws zoo ib yam li ib qho kev txhais ntawm \begin{align}2h\ kawg{align} units.
Koj sau li cas ntawm cov duab hloov pauv?
Lub cim rau kev sib xyaw ntawm kev hloov pauv (lossis ua haujlwm) yog lub voj voog qhib. Cov ntawv sau xws li yog nyeem raws li: " a txhais ntawm (x, y) → (x + 1, y + 5) tom qab kev xav hauv kab y=x". Kev sib sau ntawm kev hloov pauv tsis yog kev sib hloov.
Cov kev hloov pauv twg yuav tsim ib khub zoo sib xws?
Qhov kev xaiv raug yog " a rotation thenna dilation". Los ntawm kev sib hloov ua raws li dilation ntawm daim duab peb sab, kev sib dhos ntawm daim duab peb sab yog hloov, thiab los ntawm dilation lub angular qhov tseem ceeb tau hloov rau txhua lub kaum sab xis, tab sis los ntawm qhov sib piv, kom qhov seem zoo ib yam li cov kaum sab xis ntawm thawj daim duab peb sab.
