2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Kev piav qhia: daim duab peb sab isosceles ib txwm muaj ob qhov sib npaug sab hauv cov ces kaum sab hauv Qhov ntsuas ntawm lub kaum sab nrauv ntawm lub vertex tsis cuam tshuam los ntawm sab twg txuas ntxiv: ob lub kaum sab nrauv uas tuaj yeem yuav tsim ntawm ib tug vertex los ntawm expanding alternately ib sab los yog lwm yam yog ntsug kaum thiab yog li sib npaug. https://en.wikipedia.org › wiki › Internal_and_external_angles
kaum sab hauv thiab sab nraud - Wikipedia
thiab tag nrho peb lub kaum sab hauv ntawm ib daim duab peb sab ib txwm muaj cov lej ntawm cov lej. Vim qhov no yog daim duab peb sab isosceles, tag nrho cov kaum sab hauv yuav tsum yog cov kaum sab xis.
Puas yog daim duab peb sab isosceles mob lossis obtuse?
Txhua daim duab peb sab isosceles muaj ib qho axis ntawm symmetry raws lub perpendicular bisector ntawm nws lub hauv paus. Ob lub kaum sab nraud ntawm ob txhais ceg sib npaug thiab ib txwm mob, yog li kev faib tawm ntawm daim duab peb sab ua mob, sab xis, lossis obtuse tsuas yog nyob ntawm lub kaum sab xis ntawm nws ob txhais ceg.
Lub kaum sab xis puas yog isosceles?
Ib daim duab peb sab hnyav muaj txhua lub kaum ntsuas ntsuas tsawg dua 90º. Faj seeb: Nws muaj peev xwm ua tau rau ib daim duab peb sab yuav ua tau scalene, isosceles, los yog sib npaug.
Yuav muaj pes tsawg lub kaum sab xis puas yog daim duab peb sab isosceles?
Muaj pes tsawg lub kaum sab xis tuaj yeem muaj daim duab peb sab isosceles? Txhua daim duab peb sab isosceles muaj ob lub kaum ntse ntse. Vim tias cov lej ntawm cov kaum sab hauv ntawm daim duab peb sab yuav tsum yog 180∘.
Dab tsi yog lub kaum sab xis isoscelesdaim duab peb sab?
Los ntawm kev txhais, daim duab peb sab isosceles yuav muaj tsawg kawg yog ob sab (thiab tsawg kawg yog ob lub kaum sab xis) uas sib haum, thiab tsis muaj lub kaum sab xis yuav ntau dua. Ntxiv thiab, zoo li txhua daim duab peb sab, peb lub kaum sab xis yuav suav rau.
Pom zoo:
Lub kaum sab xis twg tuaj yeem tsim daim duab peb sab?
Daim duab peb sab kuj tuaj yeem raug cais los ntawm lawv cov kaum. Hauv daim duab peb sab mob daim duab peb sab tag nrho peb lub kaum sab xis yog mob (tsawg dua 90 degrees). Daim duab peb sab txoj cai muaj ib lub kaum sab xis thiab ob lub kaum sab xis.
Lub kaum sab xis yog daim duab peb sab?
Triangle angle sum theorem: Qhov no hais tias cov lej ntawm tag nrho peb lub kaum sab hauv sab hauv Lub kaum sab xis Nyob rau hauv geometry, lub kaum sab hauv ntawm daim duab peb sab yog cov kaum sab xis uas tsim hauv daim duab peb sab. Cov ces kaum sab hauv muaj cov khoom nram qab no:
Puas yog daim duab peb sab nrog ob sab sib npaug?
Isosceles Isosceles. Daim duab peb sab isosceles tuaj yeem kos rau ntau txoj hauv kev. Nws tuaj yeem kos kom muaj ob sab sib npaug thiab ob lub kaum sib npaug lossis nrog ob lub kaum ntse ntse thiab ib lub kaum obtuse. Nws yog ib qho yooj yim los ua kom tiav cov ces kaum uas ploj lawm ntawm daim duab peb sab isosceles los ntawm kev nrhiav cov ces kaum uas yuav tsum sib npaug.
Vim li cas isosceles yog daim duab peb sab?
Ib daim duab peb sab isosceles yog li ntawd muaj ob sab sib npaug thiab ob lub kaum sib npaug. Lub npe muab los ntawm Greek iso (tib yam) thiab skelos (leg). … Ib daim duab peb sab sib npaug yog li qhov tshwj xeeb ntawm daim duab peb sab isosceles tsis yog ob, tab sis tag nrho peb sab thiab kaum sib npaug.
Thaum twg peb xav txog daim duab peb sab ua equiangular?
Ib daim duab peb sab uas nws tag nrho peb sab thiab sab hauv cov ces kaum sib npaug yog hu ua daim duab peb sab equiangular. Rau ib daim duab peb sab kom sib npaug, qhov ntsuas ntawm tag nrho nws peb lub kaum sab hauv yuav tsum sib npaug li 60 degrees.
