Kodi chilinganizo cha pi cha bwalo ndi chiyani?
Kodi chilinganizo cha pi cha bwalo ndi chiyani?
Anonim

Gwiritsani ntchito fomula.

Kuzungulira kwa a kuzungulira akupezeka ndi fomula C= π*d = 2*π*r. Choncho pi zofanana a zozungulira circumference wogawidwa ndi awiri ake.

Poganizira izi, chifukwa chiyani Pi imagwiritsidwa ntchito popanga bwalo?

Pi r squared mu Basic masamu, pi ndi ntchito kupeza malo ndi circumference a kuzungulira. Pi ndi ntchito kupeza malo pochulukitsa utali wozungulira nthawi pi. Chifukwa mabwalo zimachitika mwachilengedwe, ndipo nthawi zambiri zimachitika ntchito mu masamu ena equations, pi ali ponseponse ndipo amakhalapo nthawi zonse ntchito.

Komanso, mawonekedwe a zozungulira ndi chiyani? Mawonekedwe apakati-radius a kuzungulira equation ili mumpangidwe (x - h)2 + (y-k)2 =r2, ndi pakati kukhala pa mfundo (h, k) ndi utali wozungulira kukhala "r". Mtundu uwu wa equation ndiwothandiza, chifukwa mutha kupeza pakati ndi radius mosavuta.

Mwa njira imeneyi, kodi anawerengera bwanji pi?

Ababulo akale owerengeka dera la bwalo potenga 3 kuwirikiza mbali mbali ya utali wozungulira wake, amene anapereka a mtengo za pi = 3. Choyamba kuwerengera za π zidachitika ndi Archimedes waku Syracuse (287-212 BC), m'modzi mwa akatswiri a masamu akale kwambiri padziko lapansi.

Kodi nambala ya biliyoni ya pi ndi chiyani?

Biliyoni imodzi (10^9) manambala a pi (kwenikweni 1, 000, 000, 001 manambala ngati muwerengera zoyamba "3") zili mufayilo pi- biliyoni.

Yotchuka ndi mutu