SOLUTION: Find the degree measure of an arc whose length is 3Pi and which is part of a circle of radius 12. Please Help! Thanks!

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Question 131962: Find the degree measure of an arc whose length is 3Pi and which is part of a circle of radius 12.
Please Help! Thanks!
Answer by rapaljer(4671) About Me  (Show Source):
You can put this solution on YOUR website!
S=r*Theta, where S = Arclength, r=radius, and Theta= angle measured in radians.

3+%2Api=12+Theta

Divide both sides by 12,
Theta+=+pi%2F4=180%2F4=45+degrees

R^2