Uyini wesimethri central?

Umqondo "emaphakathi wesimethri" sibalo eqala ukuba khona iphuzu elithile - isikhungo wesimethri. Nhlangothi zombili ke zitholakala amaphuzu okuqondene lesi sibalo. Ngamunye wabo has a ziyalingana okwamanje.

Kumele wathi ukuthi umqondo we isikhungo alikho geometry Euclidean. Encwadini nanye e iziphakamiso amathathu nesishiyagalombili kuyinto kwencazelo ngekwendzawo wesimethri axis. maphakathi umqondo uqala ukuvela ngekhulu le-16.

I wesimethri emaphakathi ekhona efana owaziwa bonke Izinombolo, efana umbuthano kanye parallelogram. Futhi okokuqala futhi maphakathi sibalo elesibili. Inombolo yomhlaba wonke yesikhungo wesimethri we parallelogram ibekwe ezimpambanweni zomgwaqo emigqeni okubuya amaphuzu okuphambene; kumbuthano - uphakathi nendawo yakhe. Ukuqondisa libhekene i isibalo esingapheliyo zingosi. iphuzu ngalinye kungaba isikhungo wesimethri. Ebhokisini kukhona ngqo ayisishiyagalolunye izindiza. Kuzo zonke izindiza ezintathu ziyalingana perpendicular onqenqemeni. Enye pass eziyisithupha ngokusebenzisa emaphethelweni idayagonali. Nokho, kukhona sibalo ukuthi akanawo omunye. Kuyinto unxantathu ezingafanele.

Kwezinye imithombo igama elithi "wesimethri emaphakathi" ichazwa kanje: umzimba weJiyomethri (sibalo) ubhekwa ziyalingana maqondana maphakathi C, uma iphuzu ngalinye A emzimbeni has a E iphuzu amanga ngaphakathi ukuthi isibalo esifanayo ukuze AE ingxenye edabula nge isikhungo, ukuze sinqume ngesigamu. kukhona ubude ngokulingana ngazimbili abafanele amaphuzu.

I-engeli ehlukene ezimbili neengcezu sibalo, lapho kukhona wesimethri emaphakathi nawo alinganayo. Imifanekiso emibili elele nhlangothi zombili iphuzu isikhungo, kulesi simo, kungenziwa esikhulu nomunye. Nokho, kumelwe kushiwo ukuthi isicelo wenziwa ngendlela ekhethekile. Ngokungafani esibukweni, a wesimethri emaphakathi eqala ukujikeleza enye ingxenye sibalo eziyikhulu namashumi ayisishiyagalombili degrees sizungeze inkaba. Ngakho, enye ingxenye iba ngama isikhundla isihlobo ukuba esibukweni yesibili. Ababili the sibalo Ngaleyo ndlela, kungaba onikezwe nomunye, outputting kusukela indiza ezivamile.

Ngo-algebra izuchenin okungekuhle ngisho nemisebenzi eyenziwa usebenzisa amagrafu. Ukuze i ngisho umsebenzi igrafu yakhiwa afanako mayelana nokuxhumanisa izimbazo. Ukuze lingalingani - maqondana iphuzu lendabuko, okungukuthi O. Ngakho, ngoba umsebenzi lingalingani sizalwa nawo wesimethri emaphakathi, futhi ngisho - axis.

I wesimethri emaphakathi kusho ukuthi indiza sibalo -eksisi wesimethri oda ezimbili. Kulokhu, eksisi bayolala perpendicular indiza.

Izimo zethu zihluke kakhulu ezivamile maphakathi yesimethri nemvelo. kungatholakala phakathi izibonelo ephelele iningi ezihlukahlukene amafomu ngokuchichimayo. Lezi amaphethini, iso-emehlweni kukhona izinhlobo ezahlukene zezitshalo, ama-mollusk izinambuzane nezilwane eziningi. Umuntu abantu bayazithanda ubuhle izimbali ngabanye, amacembe, it is akumangalisi ephelele ilungiselelo Yakha lezinyosi ku isivalo imbewu sunflower, amahlamvu stem isitshalo. I wesimethri eliyingqikithi ukuphila ikuyo yonke indawo.