Kanjani ukubala indawo isikwele: iseluleko esisebenzayo

Omunye ifomula kuqala, okuyinto sifundwa kuwo mathematics yokuthi indlela ukubala indawo konxantathu. Libuye esetshenziswa njalo kunazo. evele kukanxande elisizungezile, ngakho-ke ngokuvamile kuyadingeka ukwazi endaweni yabo. Uma kuphela ukuthola kuyoba okwanele etholakala khona upende for Umdwebo izibuya.

Yikuphi amayunithi endaweni akhona?

Uma sikhuluma eyodwa kwemukelwe ohlelweni lwamazwe ngamazwe, kuyoba imitha square. Lokhu kuwusizo ekubaleni endaweni odongeni, ophahleni noma phansi. Zibonisa indawo izindlu.

Uma kuziwa izinto ezincane, faka decimeters square, amasentimitha noma amamilimitha angu. Kwakamuva okudingekayo, uma isibalo singamaphesenti hhayi ningi than uzipho.

Lapho ukulinganisa indawo edolobheni noma izwe kukhona amakhilomitha square ofanele kakhulu. Kodwa kukhona amayunithi ukuthi zisetshenziselwa ucacise usayizi wendawo: ap futhi ehektheleni. Eyokuqala yalezi ubizwa nangokuthi aluka.

Kuthiwani uma isethi konxantathu?

Lena yindlela elula ukuthi ukubala indawo isikwele. Vele uphindaphinde nenani ezimbili ezaziwa: ubude nobubanzi. Ifomula libukeka kanje: S = A * B. Lapha izinhlamvu A no B enzelwe ubude nobubanzi.

Ngokufanayo, ibalwa endaweni isikwele, okuyinto ibe yintfo lekhetsekile isikwele. Njengoba anakho amacala alingane ke umkhiqizo kuba incwadi isikwele.

Kuthiwani uma lesi sibalo kuboniswe igrafu iphepha?

Kulesi simo kubalulekile ukuba bathembele inani lamaseli ngaphakathi ukuma. Ngo inani labo nje ukubala indawo isikwele. Kodwa lokhu kungenziwa uma emaceleni isikwele kuhambisane imigqa cell.

Ngokuvamile-ke onesikhundla we isikwele lapho ezinhlangothini zalo sithambekele mayelana razlinovke ephepheni. Khona-ke, inani cell kunzima ukunquma, ngakho ukubala kuyinto endaweni eziyinkimbinkimbi we isikwele.

Wena kuqala kudingeke ukuba uthole indawo isikwele, okungase ukudweba phezu cell ngokunembile ngalesi. Kulula: uphindaphinde ukuphakama nobubanzi. Khona-ke amagugu okuholela kuthiwa sisuswe endaweni ingqikithi onxantathu unxande. Futhi zozine. By the way, kubalwa kwabo njengoba ingxenye umkhiqizo imilenze.

Umphumela wokugcina uyonika ukubaluleka kwendawo konxantathu.

Okufanele ukwenze, uma amaqembu awaziwa, kodwa banikezwe lingakanani kanye igebe eliphakathi diagonals?

Ngaphambi kanjani ukuthola indawo isikwele, kulesi simo sidinga ukubala ngesandla sakhe, ukusizakala ifomula ajwayelekile. Ekuqaleni sivuselele impahla yakhe diagonals. Bayalingana futhi wabelane iphuzu empambana ezimbili. It kungabonakala umdwebo ukuthi ngokuphambeneyo ukwehlukana isikwele ku isosceles ezine onxantathu ukuthi bayalingana komunye nomunye.

amacala alingane unxantathu kuchazwa njenganoma kwesigamu diagonal, okuyinto waziwa. Okungukuthi, kuwo wonke unxantathu kukabili kanye igebe eliphakathi kwabo, inikeziwe inkinga. Ungasebenzisa ifayela echaza ifomu ka cosines.

Enye uhlangothi isikwele ibalwa ngokuvumelana formula lapho ukuthola amacala alingane unxantathu, kanye predetermined engela cosine. Ukubala inani lesibili ukuthatha cosine ye-engeli 180 elilingana umehluko kanye engela ezaziwayo.

Manje inkinga ukuthi ukubala indawo isikwele, kuyehla kube ukubuyabuyelela okulula la maqembu amabili wathola.

Okufanele ukwenze uma unikezwa ipherimitha e inkinga?

Ngokuvamile, isimo ke wabonisa ratio futhi has ubude nobubanzi. Umbuzo kanjani ukubala indawo isikwele, kulesi simo-ke kulula nge isibonelo ukhonkolo.

Baphethe ngokuthi le nkinga ipherimitha cm isikwele 40. It is eyaziwa ukuthi izikhathi nobude eyodwa nengxenye ububanzi. Udinga ukwazi endaweni yayo.

Isixazululo yenkinga iqala entry ipherimitha ifomula. upende yayo elula njengoba isamba ubude nobubanzi, ngalinye elikwazi iphindwe ezimbili ngamunye. Lona kwesibalo wokuqala ohlelweni ukuthi kudingeka zixazululwe.

Eyesibili ngenxa isimo eyaziwayo i-aspect ratio. Uhlangothi lokuqala, isb ubude, ilingana umkhiqizo wesibili (ububanzi) kanye nenani 1.5. Lokhu kwesibalo kumele sifakwe esikhundleni ku-formula for the ipherimitha.

It kuvela ukuthi ilingana nenani lezinombolo of monomials ezimbili. Umsuka - 2 futhi umkhiqizo ububanzi ezingaziwa, kwesibili - umkhiqizo izinombolo 2 1.5 ububanzi efanayo. Kulesi equation, ayikhulumi ngamakhosi angekho kuphela - iyona ububanzi. Kuyadingeka ukubala, bese usebenzisa kwesibalo yesibili ukubala ubude besikhathi. Ingabe kuphela wande lezi zinombolo ezimbili ukuthola indawo isikwele.

Izibalo ukunikeza lezo zimiso yilezi: ububanzi - 8 cm, ubude - 12 cm, futhi endaweni - 96 cm ^2. Inani lokugcina - impendulo yale nkinga.