Video: Yuav ua li cas yog ib tug trapezoid txawv los ntawm ib tug square?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Ob leeg a square thiab a trapezoid muaj 4 sab thiab cov ces kaum uas ntxiv mus txog 360. Squares muaj ob sab sib npaug zos thiab cov ces kaum, nws kuj muaj ob pawg ntawm opposite parallel sab. Trapezoids muaj ib txheej ntawm parallel sab.
Cov lus nug tseem yog, puas yog lub xwmfab ib lub trapezoid muaj lossis tsis yog?
Tsis muaj . Yuav kom ib tug quadrilateral ua ib trapezoid , nws yuav tsum muaj raws nraim ib khub ntawm parallel sab. Ib txoj cai trapezoid , yog li ntawd, muaj raws nraim ib khub ntawm txoj cai kaum. Txawm li cas los xij a square yuav yog txoj cai parallelogram (uas yog tam sim no txhais ntawm ib daim duab plaub).
Qhov thib ob, lub xwmfab thiab lub trapezoid yog dab tsi? Lawv yog ob qho tib si quadrilaterals, yog li ob leeg ntawm lawv muaj plaub sab. Cov square muaj ob khub ntawm parallel sab, thaum lub trapezoid nkaus xwb muaj ib khub ntawm parallel sab. Yog li ntawd, peb ua tau hais tias ob daim duab no kuj muaj ib khub ntawm parallel sab hauv feem ntau.
Tsis tas li lo lus nug yog, puas tuaj yeem square thiab trapezoid muaj tib cheeb tsam?
Raws li peb tau pom hauv ntu ua ntej peb ua tau faib a square los yog quadrilateral rau hauv ob daim duab peb sab. Qhov no muab rau peb tias cov cheeb tsam ntawm ib daim duab peb sab yog ib nrab ntawm cheeb tsam ntawm lub quadrilateral nrog rau ib yam puag thiab qhov siab. A trapezoid yog ib lub quadrilateral nrog ob sab sib luag. Ob qho tib si sab nraud yog hu ua bases.
Vim li cas lub square tsis tuaj yeem ua tus trapezoid?
A square tsis tau ua a trapezoid vim a square tuaj yeem tsuas muaj plaub lub kaum sab xis thiab ob khub ntawm qhov sib luag. A trapezoid tsuas muaj ib khub ntawm qhov sib luag.
Pom zoo:
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