Lapha, ibalwa kanjani i-pi? I-Pi ngezinye izikhathi inikezwa inani elingu-22 phezu kuka-7 elicishe libe ngu-3.14. Ukuze uthole ukulinganiselwa okunembe kakhudlwana, kufanele ube nenkinobho ye-pi kusibali sakho. Ifomula yokuthi indawo ilingana no-pi izikhathi zerediyasi eyisikwele, R imele isilinganiso serediyasi yendingiliza. Ngakho ifomula iyindawo ilingana no-pi R oyisikwele.
Yini i-pi r 2r? Ku-geometry, indawo ebiyelwe yindilinga yerediyasi r iyi u03c0r2. Lapha uhlamvu lwesiGreki u03c0 lumelela isilinganiso esingaguquki sesiyingi sanoma iyiphi indilinga ububanzi bayo, cishe obulingana no-3.1416.
Ukwengeza Uyithola kanjani indawo yombuthano?
Uyithola kanjani i-pi kusibali sesayensi?
Iyini ifomula yendawo?
Njengoba kunikezwe unxande onobude l nobubanzi w, ifomula yendawo yile: A = lw (unxande). Lokho wukuthi, indawo kanxande ubude buphindwe ngobubanzi. Njengecala elikhethekile, njengoba l = w esimweni sesikwele, indawo yesikwele enobude bohlangothi s inikezwa ngefomula: A = s2 (isikwele).
Yini i-pi*d? Itiye Umjikelezo yendilinga noma imbulunga ilingana no-3.1416 izikhathi zoMdaya. Umjikelezo = 3.1416 ⋅ Ububanzi. C = π ⋅ D. Umfanekiso #4., Isekelo ngu-pi × Ububanzi.
Iyini i-equation yesilinda? Ifomula yevolumu yesilinda ithi V = Bh noma V = 2r8h. I-radius yesilinda ingu-15 cm ukuphakama kungu-8 cm. Faka u-15 u-r no-2 ngo-h kwifomula V = XNUMXrXNUMXh.
Liyini inani lika-pi?
I-Succinctly, pi — ebhalwe njengohlamvu lwesiGreki ku-p, noma u-π - isilinganiso sobubanzi besiyingi sanoma iyiphi indingilizi nobubanzi balowo mbuthano. Akunandaba nosayizi wombuthano, lesi silinganiso sizohlala silingana ne-pi. Ngefomu ledesimali, inani le- pi lingu- cishe i-3.14.
Futhi Uthayipha kanjani i-pi?
Uyixazulula kanjani indawo?
Ubala kanjani indawo nevolumu? Nakuba ifomula eyisisekelo yendawo yomumo wonxande ingubude × ububanzi, ifomula eyisisekelo yevolumu ithi ubude x ububanzi × ukuphakama.
Uyisebenzisa kanjani ifomula yendawo?
Ingabe u-Pie inombolo yangempela?
I-Pi iyinombolo engenangqondo, okusho ukuthi inombolo yangempela engakwazi ukuvezwa nge-fraction elula. … Uma beqala kwizibalo, abafundi bethulwa ku-pi njengenani elingu-3.14 noma 3.14159. Nakuba kuyinombolo engenangqondo, abanye basebenzisa izinkulumo ezinengqondo ukuze balinganisele u-pi, njengo-22/7 ka-333/106.
Ingabe i-Pir 2 iyafana ne-pi D? U-2*pi*r no-pi*d bayinto efanayo. Kuvamile ukuthi sibhale eyokuqala esikhundleni salokhu. Futhi, ekuthathweni kwayo (usebenzisa izilinganiso ezihlukene), isiyingi siphuma njengo-2*pi*r. Ngethemba ukuthi lokhu kuyasiza.
Uyini inani likaphaya? Ngedesimali, inani lika-pi lithi cishe i-3.14. Kodwa i-pi iyinombolo engenangqondo, okusho ukuthi amafomu ayo edesimali awapheli (njengo-1/4 = 0.25) noma aphindaphindeke (njengo-1/6 = 0.166666…).
Uyithola kanjani ivolumu yesibali se-cylinder?
Bala ivolumu yesilinda: V = p2h.
Uyithola kanjani indawo ye-cylindrical? Ifomula yokubala indawo ephelele yesilinda inikezwa njengokuthi, indawo yonke yesilinda. = 2πr(h + r), kuyilapho indawo engaphezulu egobile yefomula yesilinda ithi, indawo engaphezulu egobile/eceleni yesilinda = 2πrh, lapho u-'r' eyirediyasi yesisekelo futhi 'h' ingubude besilinda.
Ngabe ubala kanjani ivolumu?
Ngenkathi ifomula eyisisekelo yendawo yesimo esingunxande ingobude x ububanzi, ifomula eyisisekelo yevolumu ithi ubude x ububanzi × ukuphakama.
Kungani u-3.14 ebizwa ngokuthi pi? Kwaze kwaba sekhulwini le-18 - cishe izinkulungwane ezimbili zeminyaka ngemva kokubaluleka kwenombolo 3.14 kwaqala ukubalwa ngu-Archimedes - lapho igama elithi "pi" laqala ukusetshenziswa khona ukuze libonise inombolo. … “Wayisebenzisa ngoba uhlamvu lwesiGreki u-Pi luhambisana nohlamvu 'P'… futhi i-pi imayelana nomjikelezo wendingilizi.”
Ingakanani inani le-pi ngo-2?
AmaRadians namaDegree
Amamaki | AmaRadio (ngqo) | AmaRadio (approx) |
---|---|---|
30 ° | π / 6 | 0.524 |
45 ° | π / 4 | 0.785 |
60 ° | π / 3 | 1.047 |
90 ° | π / 2 | 1.571 |
Kungani u-pi 22 ehlukaniswa u-7? Inani eliyingxenye ye-Pi lingu-22/7. Njengoba u-pi eyinombolo engenangqondo okungukuthi amadijithi ngemva kwephuzu ledesimali awapheli futhi awaqedi okungukuthi 3.1415926 … njalo njalo. Kungakho 22/7 kunjalo esetshenziselwa izibalo.
Uyibhala kanjani i-pi kukhompuyutha?
Cindezela ctrl+shift+u bese uthayipha okuthi zero-three-C-zero, bese ucindezela u-enter futhi uthola uphawu lwe-pi. Ngiluthayipha kanjani uphawu lwe-Pi Windows 10 uma ngingenalo ukhiye ongu-NUM? Awudingi ukukhiya okungu-NUM; esikhundleni salokho, vele ubambe ukhiye we-alt bese uthayipha u-227.
Luyini lolu phawu ρ? U-Rho (osonhlamvukazi/ofeleba abancane Ρ ρ) ngu uhlamvu lwe-17 lwezinhlamvu zezinhlamvu zesiGreki. Isetshenziselwa ukumela umsindo othi "r" ngesiGreki sasendulo nesimanje. Kuhlelo lwezinombolo zesiGreki, inenani le-100.
Ubani ubaba ka pi?
Ukubalwa kokuqala kuka-π kwenziwa ngu I-Archimedes yaseSirakuse (287–212 BC), esinye sezazi zezibalo ezinkulu kakhulu emhlabeni wasendulo.