Answer:
15.07m
Step-by-step explanation:
[tex]2\pi r0/360[/tex]
[tex]r=12[/tex]
[tex]0=180-108[/tex]
[tex]=72[/tex]
[tex]= 2*3.14*12*72/360[/tex]
[tex]= 15.07m[/tex]
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Hope it helps, have a great
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