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4 November, 23:33

The area of a circle is approximately 379.94 square inches. What is the diameter of the circle? [Use 3.14 as an approximation for pi.]

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  1. 4 November, 23:35
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    A ... area = 379.94 in^2

    π=3.14

    r ... radius

    d ... diameter = 2r

    A = π*r^2

    r^2=A/π

    r=√ (A/π) = 11 in

    d=2r = 22 in
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