Problem 46 of 7
Find arc length for radius 2 and central angle 5pi/6 radians.
Hints
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use s=r theta.
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Central angle must be in radians; use s=r theta.
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Solution
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1. Identify r and theta in radians.
2. Multiply using s=r theta.
3. Simplify exact pi form or decimal product.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Converting radian angle as if it were degrees.