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11 November, 11:32

The diagram represents the circular floor under the dome of a state capitol building. The diameter is 40 ft. Find the circumference of the floor. Approximate as 3.14.

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  1. 11 November, 12:28
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    Circumference = 2*pi*r

    C = 2*3.14*r

    C = 2*3.14 * (d/2)

    C = 3.14*d

    C = 3.14*40 ft.

    C = 125.6 ft.
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