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

2 answers:

7 0

A = C/12 = 2pi r/ 12 = pi r/6 = 2pi
Cancel out pi and you get
r/6 =2 → r=12

Answer: B) 12 inches

4 0

The answer is 12 inches

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