Marinada '25

[lang=hr] Na stranicama $AB$ i $BC$ trokuta $ABC$ dane su redom točke $P$ i $Q$. Dužine $AQ$ i $CP$ sijeku se u točki $O$. Ako su površine trokuta $COQ$, $AOC$ i $APO$ redom jednake $1$ , $2$ i $3$ , odredi površinu četverokuta $OPBQ$. [/lang] [lang=en] On the sides $AB$ and $BC$ of triangle $ABC$ we have, respectively, points $P$ and $Q$. The segments $AQ$ and $CP$ intersect at point $O$. If the areas of triangles $COQ$, $AOC$ and $APO$ are respectively $1$, $2$ and $3$, determine the area of quadrilateral $OPBQ$. [/lang]