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Using the figure below, determine the length of arc AB in terms of pi. (rounded to the nearest tenth).
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http://152.46.13.240/MoodleContent/SATprep/Math%20Unit%207/Post%20Assessment/arc%20length.gif
Do you know how to work out arc length?
If there are 360 degrees in a circle, then the portion this sector takes up is 100/360. So you would hence have to multiply that fraction by the circumference to work out the arc length.
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