Txhua sab ntawm daim duab peb sab muaj ob qhov kawg thiab qhov kawg ntawm tag nrho peb sab yog qhov sib cuam tshuam ntawm peb lub ntsiab lus sib txawv hauv lub dav hlau los ua daim duab peb sab. Lub peb qhov sib txawv ntawm qhov sib txawv ntawm lawvyog hu ua vertices ntawm daim duab peb sab.
Koj pom qhov vertex ntawm daim duab peb sab li cas?
Ua ntej koj yuav tsum tau sau qhov sib npaug ntawm ib kab, muab 2 ntsiab lus. Tom qab ntawd koj yuav tsum tau daws qhov kev sib tshuam ntawm 2 kab, uas txhais tau hais tias nws yuav muab koj cov kev sib tshuam ntawm kev sib tshuam. Qhov kev sib tshuam ntawm 2 kab no yog ib qho vertex ntawm daim duab peb sab.
Puas ib daim duab peb sab puas muaj vertex?
Cov duab sib txawv muaj cov lej sib txawv ntawm sab thiab ntsug! Ib daim duab peb sab muaj pes tsawg lub vertices? Nws muaj 3 vertices. Ib square muaj 4 sab thiab 4 vertices.
Dab tsi yog qhov vertex?
Hauv geometry, ib qho vertex (hauv ntau daim ntawv: vertices lossis vertexes), feem ntau qhia los ntawm cov ntawv xws li,,,, yog a taw tes qhov twg ob lossis ntau qhov nkhaus, kab, lossis cov npoo sib ntsib Raws li qhov tshwm sim ntawm qhov kev txhais no, lub ntsiab lus uas ob kab sib ntsib los ua ib lub kaum sab xis thiab cov ces kaum ntawm polygons thiab polyhedra yog vertices.
Dab tsi yog vertex ntawm daim duab?
vertex: Lub ntsiab lus ntawm qhov parabola hloov pauv kev coj ua, sib haum rau qhov tsawg kawg nkaus lossis siab tshaj tus nqi ntawm lub quadratic muaj nuj nqiaxis ntawm symmetry: Ib txoj kab ntsug kos los ntawm vertex ntawm ib qho parabola nyob ib ncig ntawm qhov parabola yog symmetrical. zeros: Hauv ib qho kev ua haujlwm, qhov txiaj ntsig ntawm x uas y=0, kuj hu ua cov hauv paus.
