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Circle Circumference Quiz
10-question basics mix
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57.33
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Check whether diameter, radius, circumference, arc length, or sector angle is given.
Use C = diameter × pi or C = 2 × radius × pi as the base formula.
For exact answers, keep π in the answer; for approximate answers, use 3.14.
For semicircles and sectors, find the full circumference first and then take the needed part.
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