ọdịnaya
N'isiokwu a, anyị ga-atụle nkọwa na njirimara nke triangle equilateral (mgbe niile). Anyị ga-enyochakwa ihe atụ nke idozi nsogbu iji mee ka ihe ọmụmụ ahụ sie ike.
Nkọwa nke triangle nha nhata
Ẹkot (ma ọ bụ ziri ezi) a na-akpọ triangle nke akụkụ niile nwere otu ogologo. Ndị ahụ. AB = BC = AC.
Cheta na: Otu polygon mgbe niile bụ convex polygon nwere akụkụ na akụkụ ha nhata n'etiti ha.
Njirimara nke triangle nha nhata
Ngwongwo 1
Na triangle nha nhata, akụkụ niile bụ 60°. Ndị ahụ. α = β = γ = 60°.
Ngwongwo 2
N'ime triangle equilateral, ịdị elu a na-adọta n'akụkụ ọ bụla bụ ma bisector nke akụkụ nke a na-esi na ya adọta ya, yana nke etiti na nke dị n'akụkụ.
CD - etiti, ịdị elu na bisector perpendicular n'akụkụ AB, yana akụkụ bisector ACB.
- CD n'akụkụ ọnụ AB => ∠ADC = ∠BDC = 90°
- AD = DB
- ∠ACD = ∠DCB = 30°
Ngwongwo 3
N'ime triangle nha nhata, bisectors, medians, high and perpendicular bisector adọtara n'akụkụ niile na-agbakọta n'otu ebe.
Ngwongwo 4
Ebe etiti ndị e dere ede na okirikiri gbara gburugburu triangle nhata dabara adaba ma dị na nkwụsị nke etiti, elu, bisector na bisector perpendicular.
Ngwongwo 5
Oghere dị n'okirikiri okirikiri gbara gburugburu triangle nha nhata bụ radius nke gburugburu edere ugboro abụọ okpukpu abụọ.
- R bụ radius gburugburu gburugburu;
- r bụ radius nke gburugburu e dere;
- R = 2r.
Ngwongwo 6
N'ime triangle nha anya, ịmara ogologo akụkụ (anyị ga-ewere ya dị ka "iji"), anyị nwere ike gbakọọ:
1. Elu / etiti/bisector:
2. Radius nke gburugburu edere ede:
3. Radius nke gburugburu gburugburu:
4. gburugburu:
5. Mpaghara:
Ọmụmaatụ nke nsogbu
A na-enye triangle equilateral, akụkụ ya bụ 7 cm. Chọta radius nke gburugburu gburugburu na nke edere, yana ịdị elu nke ọnụ ọgụgụ ahụ.
ngwọta
Anyị na-etinye usoro enyere n'elu iji chọta ọnụọgụ ndị amabeghị:
