Dacă A,B,C sunt puncte coliniare, AB=24cm şi BC/AB=5/6, aflaţi AC.
DAU COROANA !!!

[tex]\it \dfrac{BC}{AB}=\dfrac{5}{6} \Rightarrow \dfrac{BC}{24}=\dfrac{^{4)}5}{\ \ 6} \Rightarrow \dfrac{BC}{24}=\dfrac{20}{24} \Rightarrow BC=20\ cm\\ \\ \\ AC=AB+BC=24+20=44\ cm[/tex]