2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Qhov nruab nrab yog ib txoj kab uas koom nrog qhov nruab nrab ntawm ib sab thiab rov qab vertex ntawm daim duab peb sab. Yog li ntawd, lub ntsiab lus ntawm concurrency ntawm qhov nruab nrab ntawm daim duab peb sab yog hu ua the centroid..
Qhov twg yog qhov sib txuam ntawm qhov siab ntawm daim duab peb sab?
Peb paub tias lub ntsiab lus ntawm qhov sib npaug ntawm peb qhov siab ntawm daim duab peb sab yog hu ua orthocenter.
Qhov twg ntawm qhov sib npaug yog qhov sib npaug ntawm daim duab peb sab?
… lossis muaj qhov sib piv ntawm 2: 1 Nplooj 4 Hauv daim duab peb sab, lub ntsiab lus ntawm qhov sib txuam ntawm cov neeg nruab nrab yog the centroid. Lub ntsiab lus tseem hu ua qhov nruab nrab ntawm lub ntiajteb txawj nqus ntawm daim duab peb sab vim nws yog lub ntsiab lus uas daim duab peb sab yuav sib npaug.
Puas muaj pes tsawg lub ntsiab lus ntawm qhov sib txuam nyob hauv daim duab peb sab?
The peb qhov siab ntawm daim duab peb sab yog concurrent. Lub ntsiab lus ntawm concurrency hu ua lub orthocenter. Peb qhov nruab nrab ntawm daim duab peb sab yog concurrent. Lub ntsiab lus ntawm concurrency hu ua centroid.
Qhov taw tes ntawm qhov sib txuam ntawm qhov siab tshwm sim rau qhov mob obtuse thiab txoj cai daim duab peb sab?
Lub centroid yog ib txwm nyob rau sab hauv ntawm daim duab peb sab. Lub orthocenter yog lub ntsiab lus ntawm concurrency qhov twg peb qhov siab ntawm ib daim duab peb sab sib tshuam. Lub orthocenter tsis yog ib txwm nyob rau sab hauv ntawm daim duab peb sab. Yog tias daim duab peb sab yog obtuse, lub orthocenter yuav nyob sab nraumntawm daim duab peb sab.
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.
Qhov nruab nrab ntawm daim duab peb sab nyob qhov twg?
Lub orthocenter orthocenter 2. Yog tias daim duab peb sab yog daim duab peb sab obtuse, lub orthocenter nyob sab nraum daim duab peb sab. … Yog hais tias daim duab peb sab yog daim duab peb sab txoj cai, lub orthocenter nyob ntawm lub vertex ntawm lub kaum sab xis.
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:
Dab tsi yog 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. Tus qauv rau nruab nrab ntawm daim duab peb sab yog dab tsi? Tom qab ntawd, peb tuaj yeem suav qhov nruab nrab ntawm daim duab peb sab los ntawm kev siv qhov nruab nrab ntawm x qhov chaw thiab y qhov chaw ntawm tag nrho peb qhov vertices.
