Rau ob daim duab plaub kom zoo sib xws, lawv ob sab yuav tsum tau proportional (daim ntawv sib npaug). Qhov piv ntawm ob sab ntev yuav tsum sib npaug ntawm qhov sib piv ntawm ob sab luv. Txawm li cas los xij, sab laug piv hauv peb qhov kev faib ua feem txo qis. Peb tuaj yeem daws tau los ntawm kev sib tw sib tw.
Dab tsi zoo ib yam li daim duab plaub?
Lub Square Ib lub square kuj haum rau lub ntsiab lus ntawm lub duab plaub (tag nrho cov ces kaum yog 90 °), thiab lub rhombus (tag nrho cov sab yog sib npaug ntev).
Nyob rau hauv cov xwm txheej twg yog ob Rhombi zoo sib xws?
Kev piav qhia: Ob daim duab zoo ib yam yog lawv zoo ib yam tshwj tsis yog qhov sib txawv ntawm kev ntsuas. Qhov no txhais tau hais tias txhua lub kaum sab xis ntawm ib daim duab yuav tsum zoo ib yam li cov kaum sab xis ntawm lwm cov duab, thiab txhua sab yuav tsum tau proportional rau ib leeg.
Puas yog ib qho zoo sib xws thiab sib haum?
Lo lus 'congruent' txhais tau tias zoo tib yam hauv txhua qhov yam.. Nws yog qhov sib npaug ntawm 'sib npaug'. Cov duab sib xws muaj qhov loj me, tib lub kaum sab xis, tib sab thiab tib lub duab. … Cov duab sib xws yeej ib txwm zoo sib xws, tab sis cov duab zoo sib xws feem ntau tsis sib haum - ib qho loj dua thiab ib qho me dua.
Yim zoo li cas ib txwm sib haum?
Lub square yog tib cov duab uas muaj tag nrho cov sab congruent thiab tag nrho cov ces kaum yog concruent vim square vaj tse hais tias tag nrho cov sab ntawm lub square yog sib npaug thiab cov ces kaum kuj sib npaug. Ob daim duab zoo sib xws yog tias lawv muaj qhov sib xws thiab qhov loj me. Ob lub ces kaum sib haum yog tias lawv cov kev ntsuas zoo ib yam.
