In a circle with a 103 ft radius, how long is an arc associated with an angle of 3.8 radians?How long is an arc associated with an angle of 3.8 radians?

Question:
Solution:
If the angle is measured in radians then the length of the arc S is given by the following equation:
S = Angle x Radius.
Thus, applying this equation to the data of the problem, we get:
S = 3.8 x 103 = 391.4
Then, we can conclude that the correct answer (round to the nearest tenth) is:
391.4