Find the length of an arc of a circle with radius 12 cm if the arc subtends a central angle of 30°

Formula for arc lenght:
[tex]l = \frac{ \alpha }{360} 2r\pi[/tex]
Insert given data:
[tex]l = \frac{30}{360} \times 2 \times 12cm \times \pi[/tex]
[tex]l = 2\pi = 6.28cm[/tex]