tolong dijawab yah pake cara , makasih

sudutnya berapa
ngga keliatan

[tex]\frac{sin(50)}{x} = \frac{sin(180 - 50 - 15)}{5} \\ \frac{sin(50)}{x} = \frac{sin(115)}{5} \\ x = \frac{5 * sin(50)}{sin(115)} \\ x = \frac{5 \sqrt{6}}{3}[/tex]