Circle - isangqa ... - figure zejometri

Benza isangqa umdla ukusuka kwindawo Ngenxa intsingiselo ubugqi, umlingo kunye yamandulo eyabelwe yona ngabantu. Sonke esiphila amacandelo lincinci - athom kunye iimolekyuli - ezi setyhula ukumila kakuhle. Ilanga ke ngeenxa zonke, inyanga ngeenxa zonke, iplanethi yethu kakhulu ngeenxa zonke. Iimolekyuli yamanzi - isiseko bonke ubomi - abuye abe ngokumila setyhula. Imvelo kudala ubomi ekuhlaleni. Umzekelo, uyakwazi ukhumbule malunga nendlu le yentaka - iintaka ngokufutha kule fomu.

Eli nani ku iingcinga yeenkcubeko yamandulo

Circle - uphawu umanyano. Kuyinto khona kwiinkcubeko ezahlukeneyo ezininzi iinkcukacha zincinane. Asazi nokuba uqhoboshele ebaluleke kakhulu kule fomu njengoko ookhokho bethu.

Kuye kwaba kudala isangqa - luphawu komgca olungenasiphelo leyo ufuzisela ixesha kunye nokungapheli. Ngexesha langaphambi kobuKristu ukuba uphawu wamandulo wheel ilanga. Zonke lamanqaku kulo mzobo, lo umgca isangqa elinganayo akanasiqalo kwaye alinaso isiphelo.

A embindini wesangqa yaba ngumthombo ujikelezo olungenasiphelo isithuba kunye nexesha neengcibi. Circle - ekupheleni zonke iinyama, yiloo nto ke imfihlelo ubuxoki indalo, ngokutsho neengcibi. Form clock socofo ukuba fomu kubonisa imbuyekezo sine ukusa kwinqanaba lemvelaphi.

Eli nani na isakhiwo nelingumlingo eyimfihlakalo enzulu inikwe kuyo izizukulwana ezininzi abantu beenkcubeko ezahlukeneyo. Kodwa yintoni isangqa njengoko isafobe geometry?

Yintoni na achazwe apha

Ngokufuthi ingqikelelo kwisangqa mazingabhidaniswa ingqiqo wesangqa. Akumangalisi, ekubeni omnye komnye kudibene. Nkqu amagama abo ezifanayo, nto leyo ebangela nokudideka ezingqondweni zabafundi akuqolanga. Ukuze ufumanise ukuba "ngubani na oya", cinga ngale mibuzo ngokweenkcukacha.

Xa inkcazelo, isangqa yi egopheni leyo ivaliwe, yaye ingongoma nganye kwayo equidistant ukusuka kwindawo ekuthiwa embindini wesangqa.

Into ekufuneka uyazi nendlela ukuze bakwazi ukulusebenzisa ukuba bazobe isangqa

Ukuba bazobe isangqa, khetha ingongoma engenasizathu Kwanele, leyo ingachazwa O (loo nto uninzi imithombo wabhekisela embindini wesangqa, asiyi baphambuke ukusuka ubhalo yemveli). Inyathelo elilandelayo kukuba ukusebenzisa ikhampasi - izixhobo umzobo, equka iinxalenye ezimbini nezicwangcisiweyo ngamnye kubo nokuba ngenaliti okanye yokuloba.

La malungu mabini amaqhina oqhagamshelwano yi lomnyango elivumela ukukhetha uluhlu olithandayo ngaphakathi kwemida ethile enxulumene kunye ubude uninzi la malungu. Ukusebenzisa le divayisi ku engenasizathu indawo O umiselwe ngekompas uyinkokeli nepensile sele nezisekelwe igophe leyo ikhokelela ke kwisangqa.

Yini ebonakala isangqa

Xa uqhagamshela usebenzisa iziko umlawuli esangqeni kunye nayiphi na indawo olithandayo kwigophe afunyenwe ngenxa ikhampasi, sifumana owela ngaphakathi kwama-wesangqa. Yonke loo ziqwempu, ebizwa radii bayalingana. Ukuba connect with ngoncedo umgca othe ngqo kumgca iingongoma ezimbini kwi esangqeni kunye iziko, sinokuyifumana ubukhulu bayo.

Ukubala wesangqa kwakhona uphawu ubude bayo. Ukuze ufumane kuyimfuneko ukwazi nokuba ubukhulu okanye embindini wesangqa kwaye usebenzise kwifomula eboniswe ngezantsi.

Kule formula, C - wedini, r - embindini wesangqa, d - ubukhulu kunye nenombolo Pi - rhoqo ezixabisa 3.14.

Ke kaloku, rhoqo Pi elalibalwa njengoko ixesha ukusuka achazwe apha.

Kwenzeka ukuba kungakhathaliseki ukuba bubuphi ubukhulu Isangqa na, umlinganiselo ubude circumferential kunye ubudeki enye, lingana malunga 3.14.

Yintoni umahluko ophambili ukusuka achazwe apha kwe kwisangqa

Enyanisweni, i-sangqa - umgca. Asinto umzobo, oko umgca igophe evaliweyo ngaphandle kokuba nayiphi na isiphelo okanye ekuqaleni. Kwaye kwisithuba ibekwe ngaphakathi - nto yanto. Umzekelo elula circumferentially kuphuma hupula okanye eyahlukileyo, i ihula-hupula, abantwana sebenzisa kuqeqesho ngokwasemzimbeni okanye abadala, ukuze kudaleke besinqe slim.

Ngoku siza ukuba baqonde oko isangqa. Oku ikakhulu inani oko kukuthi ezithile amanqaku, umgca elilinganiselweyo. Kulo mzekelo umgca circle achazwe apha izenzo kuxoxwe ngasentla. Kubonakala ukuba kwesangqa - isangqa, phakathi kwayo engekho lilambatha, kwaye uluhlu amanqaku esithubeni. Ukuba ngokutsala ihula-hupula eli laphu, ngoko andisakwazi ukujijwa kusini na, kuba uya isangqa kuphinda - yobubanzi balo lifakelwa yi isiziba somchako indawo.

Qhubeka ngqo ingqikelelo wesangqa

Circle - nani zejometri, eyinxenye ye-moya ezichazwe yi kwisangqa. Kuba kwakhona luphawulwa amagama afana radius apha, kuxoxwe ngasentla kwinkcazelo wesangqa. Kwaye ukuba kubalwa ngendlela efanayo. Embindini wesangqa kunye embindini wesangqa zifana ncam ubukhulu. Ngako oko, ubude ubukhulu nayo iyafana kuzo zombini ezi meko.

Ekubeni circle yinxalenye ye-moya, esibonakala ndawo kuye. Bala ukuba ungaphinda-ukusebenzisa radius efanayo kunye nenombolo Pi. Ifomula yile ilandelayo (bona. Umfanekiso ngezantsi).

Kule formula, S - ndawo, r - owela ngaphakathi kwama-kwisangqa. Pi - kwakhona rhoqo enye ilingana 3.14.

Formula isangqa, apho ubalo kwakhona kuyenzeka ukuba ukusebenzisa i utshintsho ubukhulu kwaye kuthatha uhlobo eboniswe mzobo ulandelayo.

Enye ngekota kuvela kwinyaniso yokuba radius - ngu 1/2 le ubukhulu. Ukuba radius kabini, kuvela ukuba umlinganiselo aguqulwa ukuchwetheza:

r * r = 1/2 * d * 1/2 * d;

r * r = 1/4 * d * d.

Circle - umfanekiso apho iindawo ngamnye, zibe nokwaziwa kwicandelo ezinjalo. Kubonakala ngathi yinxalenye isangqa, nto leyo inyanzeliswe ngumda arc kwicandelo kunye radii zayo ezimbini ezivela kwiziko.

Ifomula okuvumela ukubala indawo ye candelo kubonisiwe kulo mzobo ulandelayo.

Ukusebenzisa amanani iingxaki yepolygons

Kwakhona, isangqa - imilo zejiyometri, nto leyo ngokufuthi lisetyenziswa kunye namanye amanani. Ngokomzekelo, ezifana unxantathu, a trapezoid, isikwere okanye irhombus. Kudla kukho imisebenzi apho kufuneka ufumane indawo wesangqa sibhalwe, okanye ngokuchasene noko, echazwe ezijikeleze nani ethile.

Le Isangqa sibhalwe kukuba loo ukunxibelelana macala onke polygon. Kwicala ngalinye polygon nanini na circumferential qha kufuneka.

Kuba ethile ingcaciso yohlobo yepholigoni Isangqa sibhalwe radius ibalwa ngokusebenzisa imithetho ezahlukeneyo, leyo inkcazelo uchazwe kule khosi ye geometry.

Umntu Yenza umzekelo abambalwa kubo. Ifomula wesangqa ebhaliwe polygon nga kubalwa ngolu hlobo lulandelayo (iboniswe ngezantsi ibonisa eminye imizekelo).

A embalwa imizekelo ezilula lobomi, ukuze ukuqinisa ukuqonda umahluko phakathi esangqeni uze wenze isangqa

Phambi kuthi emiseleni. Ukuba ivuliwe, umphetho nawo lo ukukhuhla - isangqa. Ukuba ivaliwe, i-inshorensi isebenza njengoko kwisangqa.

Circle nayo sathiwa umsesane - igolide, isilivere okanye izacholo. Khalisa, nto leyo uzibambileyo qela izitshixo - kwisangqa efanayo.

Kodwa umazibuthe zajikeleza efrijini, esityeni okanye keyiki, ugogo esibhakiweyo, i isangqa.

Entanyeni iibhotile okanye iinkonkxa kwisicwangciso - oko isangqa, kodwa kwesigubungelo ivale intamo, kwi efanayo phezulu yinto isangqa.

Imizekelo enjalo baninzi, nangenxa nokwenziwa kwezinto abazifunayo ukuze baphile abantwana ukuba ubanjwe ngcono uqhagamshelwano phakathi ithiyori practice.