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08-11-2018
Mathematics

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What is the radius of a circle in which a 30 degrees arc is 2 inches long

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wegnerkolmp2741o wegnerkolmp2741o

08-11-2018

arc length = pi /180 * angle in degree * radius

2 = pi/180 * 30 *r

2 = pi/6 *r

multiply by 6/pi

12/pi =r

3.819718634 =r

Answer: r =3.82 inches

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