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geometry

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April wants to add a ribbon border to the circular rug in her living room. If the area of her rug is 113.04 square feet, how long does the ribbon need to be?

  • geometry - ,

    since a = pi r^2,
    113.04 = 3.14 r^2
    r = 6 ft

    since c = 2pi*r
    c = 2*3.14*6
    c = 37.68 ft

  • geometry - ,

    i35

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