Question

In a circle, an arc 60 centimeters long subtends an angle of 5 radians. What is the radius of the circle?

Answer 1

The answer to this question is:

In a circle, an arc 60 centimeters long subtends an angle of 5 radians. What is the radius of the circle?"0.6 / 5  = 0.12 m" 

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Answer 2

Alrighty
2pi radians in a circle

so
find the circumfernce
5/2pi=60/circumfnernce
solve for circumfernece

multiply both sides by 2pi circumference
5circumference=120pi
divide both sides by 5
circumference=24pi

c=2pir
24pi=2pir
divide both sides by 2pi
12=r
the radius is 12cm