Tom qab txiav txim siab pleev xim rau lub thawv lossis txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau suav cov khoom siv, koj yuav tsum paub qhov ncig. Siv peb lub laij lej online txhawm rau xam qhov ncig ntawm lub voj voog, koj yuav tau txais cov txiaj ntsig raug tam sim ntawd.
Vajvoog - Nws yog ib qho nkhaus uas muaj cov ntsiab lus sib npaug ntawm qhov nruab nrab ntawm lub dav hlau, uas tseem yog ib puag ncig.
Radius - ib ntu los ntawm qhov chaw mus rau txhua qhov chaw ntawm lub voj voog.
inch yog ib kab ntu nruab nrab ntawm ob lub ntsiab lus ntawm lub voj voog hla ntawm qhov chaw.
Koj tuaj yeem xam qhov ncig ntawm lub voj voog los ntawm txoj kab uas hla lossis lub vojvoog.
Formula rau xam qhov ntev los ntawm txoj kab uas hla:
L = tau πD
Qhov twg:
- L - ncig;
- D - txoj kab uas hla;
- π - 3,14.
Radius
Yog tias lub vojvoog paub, ces peb muab lub tshuab xam zauv rau kev xam qhov ncig (perimeter) los ntawm lub vojvoog.
Hauv qhov no, tus qauv zoo li:
L = 2 hliπr
Qhov twg: r yog lub vojvoog ntawm lub voj voog.
Kev suav ntawm txoj kab uas hla
Qee lub sij hawm nws yog ib qho tsim nyog, ntawm qhov tsis sib xws, txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm, nws yog qhov tsim nyog, nws yog qhov tsim nyog. Koj tuaj yeem siv lub tshuab xam zauv hauv online rau cov kev suav no.