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28 July, 14:32

A dinner plate has a circumference of 106.76 cm. What is the area of the dinner plate?

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  1. 28 July, 17:44
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    C=πd where C=circumference and d=diameter ...

    A = (πd^2) / 4, from the first we see that d=C/π, and this makes the Area:

    A = (π/4) (C/π) ^2

    A=C^2 / (4π), since C=106.76

    A=11395.5625 / (4π) cm^2

    A≈906.83 cm^2
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