Vrijeme: 23:13

Noli turbare circulos meos #4

Neka je AF visina jednakokračnog šiljastokutnog trokuta \triangle ABC s osnovicom BC, a točka O središte njemu opisane kružnice. Ako je D nožište okomice iz točke A na pravac BO, a M polovište stranice \lvert AC\rvert te \measuredangle BAC= 30^\circ, odredi \measuredangle DMC.
Let AF be the altitude of an isoceles acute triangle \triangle ABC with base BC, and let O be its circumcenter. Let D be the foot of altitude from A to the line BO. Let M be the midpoint \lvert AC\rvert. Assume \measuredangle BAC= 30^\circ, find \measuredangle DMC.