Ebuntwaneni, sibala isikwere ngaphandle kwezifundo zeMathematics. Kubomi babantu abadala onesidingo esinjalo, sijamelene nini xa silungisa, siceba ukulungelelanisa impahla yefanitshala okanye siyayamkela iflethi.
"Thatha kwaye wenze" kubonisa indlela yokubala ngokufanelekileyo imilo yeemilo zejometri eziqhelekileyo: uxande, isikwere, isangqa, unxantathu kunye netrapezium.
INDLELA YOKUXELISA INDAWO YAMABALI
Ukubala indawo yexande, kufuneka uphindaphinde ubude bomfanekiso wobubanzi. Masithi silinganisa indawo yegumbi. Yi-6 m ubude, kwaye ububanzi - 3 m. Ndiphindaphindwe nge-6 ukuya kwi-3 kwaye ndifumane indawo yegumbi - iimitha ezili-18. m.
Ungabala njani isikwere esikwere
Indawo yesikwere ibalwa ngendlela efanayo: ubude bayo banda ngobubanzi. Kodwa, njengoko sisazi, amaqela alo manani alingana omnye komnye. Ke ngoko, ifomula yehla ekwakhiweni kwelinye lamaqela kwisikwere.
Indlela yokubala indawo yesangqa
Kunzima kakhulu ukubala indawo yesangqa. Ukwenza oku, kuya kufuneka uwazi irediyo yayo, elingana nesiqingatha sobubanzi. Ububanzi buyeyona nto idibanisa amanqaku ama-2 kwisangqa kwaye ugqithe kwiziko layo. Ukubala indawo, ukulinganisa ububanzi kwaye yahlule iziphumo ezifunyenwe ngu-2. ✅ Ifomula yendawo yesangqa ijongeka ngolu hlobo: Sithatha inani le-pi (lithatha inxaxheba kwiradiyo. Kuhlala khumbula ukuba iziphumo zokubala aziyi kuba zichanekile ngokupheleleyo, kuba inani le-PI linexabiso elifanelekileyo. Masithi sibala indawo yendawo yokuhombisa ehlotyeni phantsi kwe-chandelier. Qala ukulinganisa ububanzi bayo. Mayingalingani i-0.46 m. Sihlule ukuya kwi-2 kwaye sifumane ixabiso le-radius ye-0.23 m. Siza kwakhiwa kwisikwere: 0.23 = 0.0529. Emva koko ziphindaphinde inombolo ye-PI: 3.14 * 0.0529 = 0.1661. Ngenxa yoko, indawo yokuphuma yi-0.1661 yeemitha. m.
INDLELA YOKUXELISA INDLELA YOKUGQIBELA
Bala indawo yecandelo elifanelekileyo okanye elilinganayo - umsebenzi unzima nangakumbi. Ifomula ijongeka ngathi: Ingcambu ye-3 yahlulwe yangama-4 kwaye yanda ngobude belinye lamacala kwisikwere. Siyenza lula inxalenye yokuqala: Ingcambu ye-3 imalunga ne-1.732. Sahlula-hlula isiphumo ngo-4, sifumana malunga ne-0.433. Eli nani liyinxalenye rhoqo lefomula. Ngoku sithatha ubude belinye lamacala (mayibe lilingana ne-20 cm), siya kwakhiwa kwisikwere kwaye siphindaphindwe ngu-0.433. Sifumana le ndawo - 173.2 iimitha zesikwere. i-CM.
INDLELA YOKUXELISA INDAWO YOKUGQIBELA YOKUGQIBELA
Ngonxantathu onxantathu, yonke into ilula: iphindaphindwe ngo-1/2 emsebenzini we-cahets yayo (amaqela akwenziwe kwikona ethe ngqo). Umzekelo, ukuba icala lecala likanxantathu luyi-6 cm, kwaye ngezantsi yi-4 cm, emva koko indawo yayo sibala le: 1/2 (6 * 4) = 12 kv. i-CM.
Ungabalwa njani isikwere se-trapez
Ukufumana indawo ye-trapezium, yahlula-hlula ukuphakama kwayo ibe yi-2 kwaye iphindaphindwe ngexabiso lamacala. Umzekelo, ukuba ukuphakama kwe-trapezium yi-4 cm, icala eliphezulu yi-3 cm, kwaye ezantsi yi-6 cm, emva koko ngokwefomula: H / 2 (B2 + B2) ukubala kwendawo ye Umzobo ujongeka ngoluhlobo: 4/2 (3 + 6) = 2 * 9 = 18.
