SOLUTION: In the unit circle, an arc 4.1 units long subtends a central angle of how many radians? Of how many degrees, to the nearest degree?

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Question 441331: In the unit circle, an arc 4.1 units long subtends a central angle of how many radians? Of how many degrees, to the nearest degree?
Answer by stanbon(57282) About Me  (Show Source):
You can put this solution on YOUR website!
In the unit circle, an arc 4.1 units long subtends a central angle of how many radians? Of how many degrees, to the nearest degree?
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arc length = (theta)r where theta is measured in radians.
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In a unit circle r = 1.
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4.1 = (theta)*1
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theta = 4.1 radians
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theta = 4.1(180/pi) = 234.91 degrees
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Cheers,
Stan H.