Ngoba noma yisiphi Computing kudingeke isosceles unxantathu ukuphakama

Triangle - omunye abavelele geometry. Ezamukelwe ukunikeza onxantathu oqondile (lowo engela uyalingana 90 ⁰⁾ kanye ostro- obtuse (i-engeli ukubaluleka engaphansi kuka-90 noma ^0, ngokulandelana), isosceles futhi equilateral. Ngo izibalo wasebenzisa izinhlobo ezihlukahlukene zezindwangu ezingaba eziyisisekelo imiqondo weJiyomethri kanye namanani (sine, engaba lesemkhatsini, perpendicular, njll)

Isihloko socwaningo lwethu kuyoba ukuphakama unxantathu isosceles. Lokumba amagama nezincazelo, ngeke sigcine ngokuvuna selisho kafushane nemiqondo eyisisekelo ukuthi kwakudingeka uzobe ukuqonda okushiwo.

Ngakho, unxantathu isosceles ubhekwa unxantathu lapho ukubaluleka kwalezi zinhlangothi zombili uzwakalise inani elifanayo elilodwa (ukulingana izikhali). unxantathu isosceles kungaba acute-yomumo futhi obtuse, namagebhugebhu. Kungaba equilateral (nxazonke sibalo bayalingana value). Ngokuvamile ungezwa: bonke onxantathu equilateral isosceles, isosceles kodwa akuzona zonke - equilateral.

Ukuphakama kwanoma iyiphi unxantathu kubhekwa perpendicular kwehla kusuka ekhoneni ngakolunye uhlangothi sibalo. Kusebenza njengomnyombo ingxenye abezindaba sisuselwa ukuma engela esikhungweni uhlangothi.

Ukuphakama ngokuphawulekayo unxantathu isosceles?

• Uma ukuphakama, uphonse ngolunye uhlangothi, kuba imidiyeni futhi bisector ke unxantathu kuyinto isosceles kubhekwe, futhi okuphambene nalokho: unxantathu kuyinto isosceles uma ukuphakama sehliswe omunye amaqembu kokubili bisector futhi aphansi namaphakathi. Lokhu ukuphakama ibizwa ngokuthi primary.
• Ukuphakama kwehlisa ohlangothini (kuyalingana) izinhlangothi unxantathu isosceles, ayafana futhi yakha izibalo ezimbili ezifanayo.
• Uma wazi ukuphakama unxantathu isosceles (njengoba ngempela yimuphi omunye), icala langasezantsi libe lapho le ukuphakama ehliselwa, kungenzeka ukwazi indawo ipholigoni. S = 1/2 * _(c * h c)

Indlela yokusebenzisa ukuphakama unxantathu isosceles e izibalo? Izakhiwo ke ibanjwe kwesisekelo salo, ukwenza ukugomela elandelayo ophethe:

• Ukuphakama eziyisisekelo, ngokuba kokubili imidiyeni uhlukanisa base zibe izingxenye ezimbili alinganayo. Lokhu kuvumela sazi inani base endaweni unxantathu ezakhiwe ukuphakama, njll
• Njengoba kungase ukuphakama perpendicular unxantathu isosceles kubhekwe ephathini (emlenzeni) entsha unxantathu wesokudla-angled. Eqaphela izinzuzo ngamunye amaqembu, esekelwe theorem kaPythagoras (ubuhlobo owaziwa imilenze kanye hypotenuse yisikwele amagugu) ukubala value kwamanani obude.

Uyini ukuphakama unxantathu? Ngokuvamile, unxantathu isosceles, okwenza sidinge ukuphakama, asiyeki kube ngakho empeleni yabo. Ngakho-ke, ungalahli ukuqondana abo kuye amafomula esetshenziswa kulezi izibalo, njengoba enjalo. Kungenzeka ukubala ukuphakama obuphelele, engeli futhi owazi uhlangothi, ubukhulu bale amaqembu, futhi endaweni ohlangothini, kanye neminye imingcele eziningana. Ukuphakama unxantathu ilingana isilinganiso esithile lezi zimiso. Zinike ifomula akwenzi ingqondo ukuze uwathole kalula. Ngaphezu kwalokho, ukuba ubuncane ulwazi, ungathola amagugu kanye kuphela bese uqhubekela phambili ukulinganisa ubude.