Igalelo leradiyasi okanye ubude bedayamitha ukubala umthamo wesphere.
Esi sikhaltyhuleyitha esibala ngokukodwa umthamo wecandelo okanye ibhola , inkxaso yemetric kunye neeyunithi zobukhosi (i-intshi, iinyawo, iiyadi, mm, cm okanye imitha), kunye nesiphumo sevolumu sinokuguqulela kwiyunithi eyahlukileyo, kunye nefomula yokubala kunye nembonakalo eguqukayo. sphere, isinceda ukuba sifumane iimpendulo kwaye siqonde iziphumo ngokulula ngakumbi.
Ingqukuva yinto yejiyometri engqukuva ngokugqibeleleyo ene-dimensional emithathu, enenqaku ngalinye kumphezulu olinganayo ukusuka kumbindi wayo. Izinto ezininzi ezisetyenziswa ngokuqhelekileyo ezifana neebhola okanye iiglowusi ziingqukuva. Ukuba ufuna ukubala umthamo wesphere, kufuneka ufumane iradius yayo kwaye uyixhume kwifomula elula,
V = 4⁄3πr³.
Ifomula yomthamo we-sphere yi-4/3 yamaxesha pi amaxesha eradius cubed. Ukuphinda-phinda inani lithetha ukuliphinda-phinda lodwa kathathu, kulo mzekelo, iradiyasi iphinda-phinda iradiyasi.
Fumana umthamo wengqukuva eneradius 4 intshi.
Ukuba sifuna ukuguqula iiyunithi zevolumu zibe ziiyunithi ezahlukeneyo, sinokuguqula iiyunithi zerediyasi zibe yivolyum efanayo kuqala,
umzekelo,
ingqukuva eneradiyasi yee-intshi ezili-9.
Ingaba ithini ivolyum kwi-ft³?
Ukuba sinenani ledayamitha kuphela, isiqingatha sedayamitha yiradiyasi, sahlulahlule nje ububanzi ngo-2, kwaye siya kuba neradiyasi.