2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
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.
Dab tsi yog daim duab peb sab sib npaug piav qhia?
Ib daim duab peb sab sib npaug yog daim duab peb sab nrog tag nrho peb sab ntawm qhov sib npaug, sib xws rau qhov uas tuaj yeem raug hu ua "ib txwm" daim duab peb sab. Ib daim duab peb sab sib npaug yog qhov tshwj xeeb ntawm daim duab peb sab isosceles tsis yog ob, tab sis tag nrho peb sab sib npaug.
Dab tsi yog daim duab peb sab sib npaug thiab nws cov qauv?
Area of Equilateral Triangle Formula: K=(1/4)√3a. Qhov siab ntawm Equilateral Daim duab peb sab: h=(1/2)√3a. Lub kaum sab xis ntawm daim duab peb sab sib npaug: A=B=C=60 degrees. Sab ntawm Equilateral Daim duab peb sab: a sib npaug b sib npaug c.
Vim li cas thaj tsam ntawm daim duab peb sab sib npaug?
Feem ntau, qhov siab ntawm daim duab peb sab sib npaug yog sib npaug rau √3 / 2 npaug ntawm ib sab ntawm daim duab peb sab sib npaug. Qhov cheeb tsam ntawm daim duab peb sab equilateral yog sib npaug rau 1/2√3s / 2s=√3s 2 /4.
Dab tsi yog daim duab peb sab zoo meej?
Hauv trigonometry, daim duab peb sab zoo meej txhais tau tias yog daim duab peb sab uas muaj ib puag ncig sib npaug rau nws thaj chaw. Muaj ntau txoj hauv kev los nrhiav cov duab peb sab zoo meej. Ib daim duab peb sab zoo meej tuaj yeem yog ib qhoequilateral, ib qho isosceles, los yog daim duab peb sab. Kab lus no yuav qhia koj ntau yam piv txwv!
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.
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 thiaj siv daim ntaub qhwv daim duab peb sab?
Ib daim duab peb sab yog siv ua ib caj npab lossis ua lub ncoo los tswj ntshav. Nws kuj tseem siv tau los txhawb lossis immobilize qhov raug mob rau pob txha lossis pob qij txha los yog ua padding ua rau mob hnyav. Cov ntaub qhwv lub cev yog siv los khaws cov hnav khaub ncaws ntawm tus ntiv tes lossis ntiv taw.
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.
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.
