Answer:
14.9 cm
Step-by-step explanation:
[tex] \frac{ \sin(12) }{10} = \frac{150}{a} = \frac{ \sin(18) }{c} \\ c = \frac{10 \times \sin(18) }{ \sin(12) } = \\ c = \frac{3.09}{0.2079} = 14.86 = 14.9[/tex]