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30 November, 19:32

Part A The circumference of a dinner plate is 19.5 inches. What is its radius? (use π=3.14) Round your answer to the nearest hundredth. inches.

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  1. 30 November, 23:07
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    Circumference = PI x diameter

    FInd the diamter:

    19.5 = 3.14 x diameter

    Divide both sides by 3.14:

    Diameter = 19.5 / 3.14

    Diameter = 6.21019108 inches.

    Radius = diameter / 2

    Radius = 6.21019108 / 2

    Radius = 3.10509554 inches

    Rounded to the nearest hundredth = 3.11 inches.
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