What is the radius of a circle in which a 30° arc is 2 pi inches long? 24 inches 12 inches 2 to the square root of 3 inches

asked Sep 14, 2021 26.1k views

2 votes

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

24 inches
12 inches
2 to the square root of 3 inches

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1 vote

the answer is 12 inches

Thinkdeep answered Sep 14, 2021

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6 votes

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

OjM answered Sep 18, 2021

by OjM

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