Indlela yokuthola engaba umbuthano: ukusiza abafundi

Indlela yokuthola lo engaba mbuthano? Lo mbuzo njalo kubalulekile abenza izifundo planimetry. Ngezansi sibheka ezinye izibonelo ukuthi ungabhekana kanjani kulo msebenzi.

Kuye engaba izimo umbuthano umsebenzi, ungakwazi ukuthola indlela.

Formula 1: R = L / 2π, lapho A - kuyinto selilonke, futhi π - njalo ulingana 3.141 ...

Formula 2: R = √ (S / π), lapho S - inani endaweni embuthanweni.

Formula 3: R = D / 2 lapho D - kuyinto ububanzi we umbuthano, isb ubude kwesigaba lapho edabula maphakathi sibalo lebhokisi Ubuningi bamahora esilinganayo ngaphandle amaphuzu amabili.

Indlela yokuthola lo engaba circumcircle

Okokuqala ake sichaze amazwi athi uqobo. Selilonke elibizwa ezichazwe lapho kumayelana bonke emavetheksi ipholigoni. Kufanele kuqashelwe ukuthi umbuthano lingachazwa babalelwa ipholigoni ezinjalo, ogama izinhlangothi nama-engeli ayalingana nomunye, okungukuthi, azungeze unxantathu equilateral, sikwele, rhombus, njll kwesokudla Ukuze uxazulule le nkinga kubalulekile ukuthola azungezwe we ipholigoni, wafa esandleni sakhe futhi endaweni. Ngakho-ke, ehlome umbusi, ikhampasi, isibali, notebook ngepeni.

Indlela yokuthola lo engaba embuthanweni, uma echazwe mayelana unxantathu

Formula 1: R = (A * B * B) / 4S, lapho A, B, C, - ubude emaceleni unxantathu, futhi S - endaweni yayo.

Formula 2: R = A / isono, lapho A - ubude kolunye uhlangothi sibalo, nesono futhi - value ibalwa ka-sine ye okuphambene engela ohlangothini.

Irediyasi kwendilinga echazwe emhlabeni unxantathu wesokudla-angled.

Formula 1: R = B / 2, lapho B - hypotenuse.

Formula 2: R = M * B, lapho B - hypotenuse, futhi M - imidiyeni olwenziwa nalokho.

Indlela yokuthola engaba umbuthano uma echazwe bezungeza ipholigoni njalo

Formula: R = A / (2 yesono (360 / (2 * n))), lapho A - ubude kolunye uhlangothi sibalo, kanye n - nenani izinhlangothi figure yejeyomethri.

Indlela yokuthola lo engaba incircle

Umbuthano elalibhalwe ibizwa ngokuthi uma sisebenza kuzo zonke izinhlangothi ipholigoni. Cabangela lezi zibonelo ezimbalwa.

Formula 1: R = S / (P / 2) lapho - S and R - endaweni kanye azungezwe we sibalo ngokulandelana.

Formula 2: R = (P / 2 - A) * TG (a / 2), lapho P - ipherimitha A - ubude omunye amaqembu, futhi - okuphambene nganeno engela.

Indlela yokuthola lo engaba embuthanweni, uma olotshwe unxantathu kwesokudla

Formula 1:

Lo engaba umbuthano lapho olotshwe rhomb

A umbuthano kungenziwa alotshiwe iyiphi rhombus kuyinto equilateral futhi scalene.

Formula 1: R = 2 * H, lapho H - ukuphakama ukuma weJiyomethri.

Formula 2: R = S / (A * 2), lapho S - iyona indawo rhombus, no - ohlangothini ubude bayo.

Formula 3: R = √ ((S * isono A) / 4), lapho S - kuyinto endaweni rhombus, no-isono - engela sine-acute sibalo Jomethri.

Formula 4: R = V * T / (√ (V² + G²) lapho B ne-T - kuyinto ubude diagonals sibalo Jomethri.

Formula 5: R = B yesono (A / 2), lapho - diagonal we rhombus, no - iyi-engela at vertices ukuthi ukuxhuma idayagonali.

Irediyasi kwendilinga eqoshwe unxantathu

Esimweni ukuthi inkinga unikezwa ubude emaceleni sibalo, kuqala abale azungezwe unxantathu (U), bese isigamu-ipherimitha (n):

P = A + B + C, lapho A, B, - ubude izinhlangothi sibalo Jomethri.

n = n / 2.

Formula 1: R = √ ((p-A) * (n-D) * (n-B) / n).

Futhi uma, ukwazi konke elifanayo amaqembu amathathu, unikezwa kakhudlwana futhi indawo sibalo, ungakwazi ukubala ububanzi oyifunayo kanje.

Formula 2: R = S * 2 (A + B + C)

Formula 3: R = S / f = S / (A + B + C) / 2), lapho - n - kuyinto semiperimeter sibalo Jomethri.

Formula 4: R = (n - k) * TG (A / 2), lapho u-n - kuyinto semiperimeter unxantathu A - omunye ezinhlangothini zalo, futhi TG (A / 2) - tangent isigamu nganeno engela okuphambene.

A ngezansi ifomula ngenhla uzothola engaba umbuthano eqoshwe e unxantathu equilateral.

Formula 5: R = A * √3 / 6.

Irediyasi kwendilinga eqoshwe endaweni unxantathu wesokudla

Uma inkinga unikezwa ubude imilenze kanye hypotenuse ke lo engaba umbuthano elalibhalwe njengoba saziwa.

Formula 1: R = (A + B C) / 2, lapho A no B - imilenze, C - hypotenuse.

Kuleso simo, uma umlenze ezimbili kuphela, sekuyisikhathi ukukhumbula theorem kaPythagoras ukuthola hypotenuse nokusebenzisa ifomula ngenhla.

C = √ (A² + B²).

Irediyasi kwendilinga olotshwe isikwele

Circle eqoshwe sikwele, uhlukanisa zonke izinhlangothi zalo 4 ncamashi nengxenye amaphuzu tangency.

Formula 1: R = A / 2, lapho A - side ubude isikwele.

Formula 2: R = S / (P / 2), lapho S futhi F - endaweni kanye azungezwe isikwele, ngokulandelana.