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Waa maxay dhabanada dhexe?
Waxaa la sheegay in fikradda ah xarunta kajirin in geometry Euclidean. In buugga kow iyo tobnaad ee siddeed iyo soddon jeedinta waa qeexidda of dhidibka dhabanada da'ayeen. xarunta of fikradda ugu horeeyay ee u muuqday in qarnigii 16aad.
dhabanada dhexe joogo ee sida fiican u yaqaan oo dhan Tirokoobyada, sida goobada iyo baaralalogaraam ah. Oo hore iyo xarunta labaad ee tiradaasi mid. Xaruntu waxay dhabanada of baaralalogaraam la dhigayaa isgoyska of khadadka soo baxaysaa dhibcood ka soo hor jeedda, goobo ah - waa xarunta iyada. Si toos ah waxa lagu gartaa tiro aan la koobi karayn goobaha sida. dhibic kasta oo laga yaabaa in xarun dhabanada. In sanduuqa jiro si toos ah sagaal diyaaradood. Of dhan saddex diyaaradood symmetrical dadab iyo in ay ku laayeen. kale lix maraan iyada oo cidhifyada dadab. Si kastaba ha ahaatee, waxaa jira tiradaasi ah in aysan heysan hal. Waa saddex xagal ah oo aan loo aabo yeelin.
The xaglo kala ah laba toortaha of tiradaasi, taas oo ay jirto dhabanada dhexe sidoo kale waa u siman yihiin. Laba tirooyinka been labada dhinac ee hal dhibic xarunta, haddii ay taasi ku, la superimposed kartaa on kasta oo kale. Si kastaba ha ahaatee, waa in la sheegay in codsiga waxaa lagu fuliyaa si gaar ah. Si ka duwan muraayadda, dhabanada dhexe ku xisaabtanay wareeg ka mid ah qayb ka mid ah tiradaasi boqol iyo siddeetan degrees agagaarka xarunta. Sayidka, qayb ka mid baddhamada galay qaraabo meel muraayad labaad. Laba ka mid ah tiradaasi sidaas lagu soo rogi karaa on midba midka kale, outputting ka diyaarad caadi ah.
In algebra izuchenin hawlaha kisi iyo dhaban fuliyay isticmaalaya garaafyada ah. Waayo, xataa shaqo ah garaaf waxaa dhisay symmetrically si ixtiraam leh in ay faasas duwo. Waayo cajiib ah - marka la eego, barta ay ka soo jeedo, waa O. Sidaa darteed, shaqo cajiib ah ay tahay dhaxal dhabanada dhexe, iyo xataa - dhidibka.
dhabanada dhexe oo muujinaysa in tirada diyaarad dhidibka dhabanada amarka laba. Xaaladdan oo kale, dhidibka dadab ku seexan doontaa in diyaarada.
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