bantu jawab ya kawan kawan pakai cara

18.
[tex] \frac{120}{360} = \frac{Pb}{2. \frac{22}{7} 7} \\ Pb=14,67[/tex] = [tex]14 \frac{2}{3} [/tex]

19.
[tex] \frac{50}{120} = \frac{15}{CD} \\ CD= \frac{15.120}{50} \\ CD=36[/tex]