2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
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 daim duab peb sab nrog ob sab sib npaug?
Hauv geometry, daim duab peb sab isosceles yog daim duab peb sab uas muaj ob sab ntawm qhov sib npaug. … Ob lub kaum sab xis ntawm ob txhais ceg sib npaug thiab ib txwm mob hnyav, 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.
Puas yog daim duab peb sab sib npaug ib daim duab peb sab isosceles?
Ib daim duab peb sab sib npaug yog daim duab peb sab uas nws ob sab sib npaug. … Txhua daim duab peb sab sib npaug kuj yog an isosceles daim duab peb sab, yog li ob sab uas sib npaug muaj qhov sib npaug sib npaug. Yog li ntawd, txij li tag nrho peb sab ntawm daim duab peb sab sib npaug sib npaug, tag nrho peb lub ces kaum sib npaug, ib yam nkaus.
3 sab ntawm daim duab peb sab hu ua dab tsi?
Nyob rau hauv daim duab peb sab sab xis, lub hypotenuse yog sab ntev tshaj plaws, sab "tawm tsam" yog ib qho hla ntawm lub kaum sab xis, thiab ib sab "nyob ib sab" yog ib sab ntawm lub kaum sab xis muab. Peb siv cov lus tshwj xeeb los piav txog ob sab ntawm daim duab peb sab.
Koj hu li cas daim duab peb sab uas muaj 3 sab sib npaug?
Equilateral . Ib daim duab peb sab sib npaug muaj pebsib npaug sab thiab kaum. Nws yuav ib txwm muaj kaum ntawm 60 ° hauv txhua lub ces kaum.
Pom zoo:
Puas yog daim duab peb sab zoo sib xws?
Thawj, kab laug sab tsis tas ib txwm zoo sib xws. … Nyob rau hauv ob qho tib si, ceg ntawm daim duab peb sab loj yog ob zaug ntev npaum li cov ceg sib thooj hauv daim duab peb sab me. Muab hais tias lub kaum sab xis ntawm ob txhais ceg yog lub kaum sab xis nyob rau hauv txhua daim duab peb sab, cov ces kaum yog congruent.
Puas qhov nruab nrab ntawm daim duab peb sab ib txwm sib tshuam?
Txhua daim duab peb sab muaj peb qhov nruab nrab, ib qho los ntawm txhua qhov vertex, thiab lawv txhua tus sib tshuam ntawm daim duab peb sab centroid. Nyob rau hauv cov ntaub ntawv ntawm isosceles thiab equilateral daim duab peb sab, ib tug nruab nrab bisects ib lub kaum sab xis ntawm ib tug vertex uas nws ob sab nyob ib sab yog sib npaug zos nyob rau hauv ntev.
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:
Daim duab peb sab sib npaug li cas?
Ib daim duab peb sab sib npaug tuaj yeem tsim los ntawm noj ob qhov chaw ntawm lub voj voog thiab ob qho ntawm cov ntsiab lus ntawm kev sib tshuam. Nyob rau hauv ob txoj kev ib tug by-product yog tsim ntawm vesica piscis. Cov pov thawj tias qhov tshwm sim yog daim duab peb sab sib npaug yog thawj qhov kev pom zoo hauv Phau Ntawv I ntawm Euclid's Elements.
Puas yog txhua daim duab peb sab sib npaug?
Ib daim duab peb sab sib npaug yog daim duab peb sab uas nws ob sab sib npaug. … Yog li ntawd, txij li tag nrho peb sab ntawm daim duab peb sab sib npaug sib npaug, tag nrho peb lub kaum sab xis sib npaug, ib yam nkaus. Li no, txhua daim duab peb sab sib npaug kuj yog qhov sib npaug.
