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20 September, 20:46

A: A circle has a circumference of 45 cm. What is the BEST estimate of the circle's diameter?

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  1. 20 September, 21:03
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    D ≈ 14.32 cm

    Step-by-step explanation:

    C = 2πR, or C=πD

    D=C/π = 45/π ≈ 14.32 cm
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