Puas qhov nruab nrab ntawm daim duab peb sab ib txwm sib tshuam?

Cov txheej txheem:

Puas qhov nruab nrab ntawm daim duab peb sab ib txwm sib tshuam?
Puas qhov nruab nrab ntawm daim duab peb sab ib txwm sib tshuam?
Anonim

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.

Puas nruab nrab ib txwm cuam tshuam?

Qhov nruab nrab ntawm daim duab peb sab yog ib ntu txuas nrog ib qho vertex mus rau nruab nrab ntawm sab nraud. Qhov nruab nrab ntawm ib daim duab peb sab yog concurrent (lawv sib tshuam hauv ib qho ntsiab lus). … Qhov nruab nrab ntawm daim duab peb sab yog ib txwm sib npaug ntawm sab hauv ntawm daim duab peb sab. Lub centroid faib cov nruab nrab rau hauv qhov sib piv 2: 1.

Puas nruab nrab ntawm daim duab peb sab sib ntsib ntawm ib qho taw tes?

Ib qhov nruab nrab ntawm daim duab peb sabyog qhov chaw uas peb qhov nruab nrab ntawm daim duab peb sab sib ntsib. … Lub centroid tseem hu ua qhov nruab nrab ntawm lub ntiajteb txawj nqus ntawm daim duab peb sab. Yog tias koj muaj daim duab peb sab, sim ntsuas lub phaj ntawm koj tus ntiv tes. Thaum koj pom lub ntsiab lus uas nws yuav sib npaug, qhov ntawd yog qhov nruab nrab ntawm daim duab peb sab.

Dab tsi yog qhov kev sib tshuam ntawm qhov nruab nrab ntawm daim duab peb sab?

Median Theorem hais tias qhov nruab nrab ntawm daim duab peb sab sib tshuam ntawm ib qho chaw hu ua the centroid uas yog ob feem peb ntawm qhov kev ncua deb ntawm qhov vertices mus rau nruab nrab ntawm sab nraud..

Puas yog qhov nruab nrab ntawm daim duab peb sab sab nraum daim duab peb sab?

Yog koj pom nruab nrab ntawm ib sab ntawm ibdaim duab peb sab, koj tau pom nws qhov nruab nrab. Los ntawm qhov nruab nrab, koj tuaj yeem tsim qhov kab ntu mus rau sab hauv lub kaum sab xis. Txoj kab tsim los ntawm qhov nruab nrab ntawm ib sab mus rau lub kaum sab xis sab hauv yog qhov nruab nrab.

Pom zoo:

Nthuav cov khoom
Lo lus prosodically txhais li cas?
Nyeem ntxiv

Lo lus prosodically txhais li cas?

hais txog lub suab thiab lub suab (=txoj kev tus neeg hais lus lub suab nce thiab ntog) ntawm cov lus: Prosodic nta ua lub luag haujlwm tseem ceeb hauv kev tsim cov qauv kev ntxhov siab hauv cov lus thiab kab lus. prosodic teebmeem zoo li suab thiab intonation.

Vim li cas kuaj cov qib calcitonin?
Nyeem ntxiv

Vim li cas kuaj cov qib calcitonin?

Kev kuaj calcitonin feem ntau yog siv txhawm rau kuaj xyuas C-cell hyperplasia thiab medullary thyroid cancer medullary thyroid cancer Medullary carcinoma yuav xa mus rau ib qho ntawm ntau hom qog nqaij hlav ntawm epithelial keeb kwm. Raws li lo lus "

Thaum twg st sebastian raug ntaus?
Nyeem ntxiv

Thaum twg st sebastian raug ntaus?

Nws tau raug ntaus los ntawm Pope Benedict XIV hauv 1743 thiab canonized hauv 1807 los ntawm Pope Pius VII. Thaum twg Sebastian dhau los ua neeg dawb huv? St. 288, Rome [Italy]; Hnub ua koob tsheej Lub Ib Hlis 20), cov ntseeg thaum ntxov tau nrov los ntawm cov neeg pleev kob Renaissance thiab ntseeg tias tau tua neeg thaum muaj kev tsim txom ntawm cov ntseeg los ntawm Roman huab tais Diocletian.