Vim li cas isosceles yog daim duab peb sab?

Cov txheej txheem:

Vim li cas isosceles yog daim duab peb sab?
Vim li cas isosceles yog daim duab peb sab?
Anonim

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.

Txoj cai ntawm isosceles daim duab peb sab yog dab tsi?

Txoj cai rau daim duab peb sab isosceles yog daim duab peb sab yuav tsum muaj ob sab ntawm qhov sib npaug. Ob sab no hu ua ob txhais ceg ntawm daim duab peb sab thiab sab tsis sib xws yog hu ua lub hauv paus. Lub isosceles daim duab peb sab theorem hais ntxiv tias cov kaum sab nraud rau txhua qhov sib npaug yuav tsum sib npaug.

Vim li cas ob txhais ceg ntawm daim duab peb sab isosceles congruent?

Ib daim duab peb sab isosceles yog ib daim duab peb sab uas muaj tsawg kawg yog ob sab congruent. Lub congruent sab ntawm daim duab peb sab isosceles yog hu ua ob txhais ceg. … Ib qho ntawm cov khoom tseem ceeb ntawm daim duab peb sab isosceles yog uas lawv cov kaum sab xis yog ib txwm sib haum. Qhov no hu ua Base Angles Theorem.

3 yam ntxwv ntawm daim duab peb sab isosceles yog dab tsi?

Ib daim duab peb sab Isosceles muaj cov khoom nram qab no:

  • Nws muaj ob sab ntawm qhov sib npaug. …
  • Cov kaum sab nraud rau qhov sib npaug ntawm qhov sib npaug. …
  • Qhov siab tshaj ntawm vertex A mus rau lub hauv paus BC yog lub perpendicular bisector ntawm lub hauv paus BC.
  • Qhov siab ntawm vertex A mus rau hauv paus BC yog lub kaum sab xis ntawm lub kaum sab xis ∠ A.

5 yam khoom ntawm daim duab peb sab isosceles yog dab tsi?

Ib qho isosceles daim duab peb sab txhais tau hais tias nws yog ib qho polygon uas muaj ob lub vaj huam sib luag, ob lub kaum sib npaug, peb ntug, peb vertices thiab cov lej ntawm cov kaum sab hauv ntawm daim duab peb sab sib npaug rau 180 0.

Pom zoo:

Lub kaum sab xis yog daim duab peb sab?

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?

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?

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.

Puas isosceles daim duab peb sab mob?

Puas isosceles daim duab peb sab mob?

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.

Thaum twg peb xav txog daim duab peb sab ua equiangular?

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.