meoGHwmakraz meoGHwmakraz

02-07-2016
Mathematics

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what is the radius of a circle in which a 30° arc is 2 inches long?

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Ckaranja Ckaranja

04-07-2016

Length of arc=[tex] \frac{Ф}{360} 2 \pi r[/tex]
2=[tex] \frac{30}{360} *2*3.412*r[/tex]
2=0.5237r
r=[tex] \frac{2}{0.5237} [/tex]
r=3.82 inches

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