Matura 2025. jesen - B

Na skici su prikazani trokuti $ABC$ i $CDE$. Točka $C$ sjecište je dužina $\overline{AD}$ i $\overline{BE}$ te vrijedi $\left|\overline{AB}\right|=20\text{ cm},\left|\overline{AC}\right|=16.8\text{ cm},\left|\overline{CD}\right|=4.2\text{ cm}$ i $\left|\angle EDC\right|=\left|\angle BAC\right|=60^{\circ }$.