Puas tag nrho daim duab peb sab muaj lub centroid?

Cov txheej txheem:

Puas tag nrho daim duab peb sab muaj lub centroid?
Puas tag nrho daim duab peb sab muaj lub centroid?
Anonim

Nyob rau hauv txhua daim duab peb sab, lub centroid yog ib txwm nyob rau hauv daim duab peb sab ! Ntsuas thiab nrhiav qhov nruab nrab ntawm txhua sab ntawm daim duab peb sab. Kos lub midpoint kom meej. Txuas peb qhov nruab nrab nrog lawv cov vertices rov qab.

Puas txhua daim duab peb sab muaj ib lub centroid?

Txhua daim duab peb sab muaj peb qhov nruab nrab, ib qho los ntawm txhua qhov vertex, thiab lawv txhua tus sib cuam tshuam ib leeg ntawm daim duab peb sab centroid.

Puas tag nrho cov duab muaj qhov nruab nrab?

Nyob ntawm cov duab ntawm cov khoom, ib qho, ob, lossis peb qhov kev sib koom tes yuav xav tau txhawm rau txhawm rau txheeb xyuas nws qhov chaw nyob hauv qhov chaw. Yog ib daim duab muaj qhov sib npaug ntawm qhov sib npaug, ces nws lub centroid yuav ib txwm nyob ntawm qhov axis.

Dab tsi yog qhov tseeb ntawm qhov nruab nrab ntawm daim duab peb sab?

Lub centroid ntawm daim duab peb sab yog qhov taw tes uas peb qhov nruab nrab coincide. Lub centroid theorem hais tias lub centroid yog 23 ntawm qhov kev ncua deb ntawm txhua lub vertex mus rau nruab nrab ntawm qhov opposite sab.

Qhov twg zoo tshaj piav qhia qhov nruab nrab ntawm daim duab peb sab?

Ib qhov nruab nrab ntawm daim duab peb sab yog qhov taw tes uas peb qhov nruab nrab ntawm daim duab peb sab sib ntsib. Qhov nruab nrab ntawm ib daim duab peb sab yog ib txoj kab los ntawm ib qho vertex mus rau nruab nrab taw tes ntawm sab nraud ntawm daim duab peb sab. Lub centroid tseem hu ua qhov nruab nrab ntawm lub ntiajteb txawj nqus ntawm daim duab peb sab.

Pom zoo:

Lub kaum sab xis twg tuaj yeem tsim daim duab peb sab?

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?

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.

Puas yog tag nrho cov neeg zoo tag nrho narcissists?

Puas yog tag nrho cov neeg zoo tag nrho narcissists?

Narcissist yeej muaj peev xwm nqa tau cov yam ntxwv ntawm kev ua tau zoo heev, xav tswj txhua yam, xav kom lawv lub ntiaj teb nyob rau hauv kev txiav txim zoo, tab sis tsis yog txhua tus narcissist, qee qhov kev tsis sib haum xeeb tib yam uas ib tug neeg tuaj yeem ua tau zoo heev thiab txawm tias tej zaum ntau dhau lawm, xav tau yam nyob hauv … Puas yog perfectionism ib daim ntawv ntawm narcissism?

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.