Problem 36 of 7
Find arc length from radius 8 and angle 3pi/4.
Hints
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use s=r theta.
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Use s=r theta for unit circle and larger circles.
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Solution
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1. Confirm angle is in radians.
2. Multiply radius by angle measure.
3. Attach length units from the radius.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Using degree angle in s=r theta without converting to radians.