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IMO 2008/P6 - maxsus konfiguratsiyalardan biri

IMO 2012/P5 - to'g'ri burchakli uchburchak

To'rtburchak uchun Brianshon...

tanish configlar (Iran TST 2009)

harmonik nuqtalar va tanish config (Serbian NO)

Uchburchakning tashqi-ichki aylanasi va ba'zi natijalar

Balkan MO 2023, P2

Ko'p uchraydigan config (IZHO)

School 239 MO, 2023 / Senior / P2

bissektrisaga perpendikulyar Gauss t/ch

Ichki aylanaga urinuvchi aylana (Serbia TST)