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MATH

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a path #m wide surround a rectangular garden 15M wide and 18m long .what is the area of the path?

  • MATH - ,

    Add twice the width, w, of the path to the length, all it Length = 18+2w
    Add twice the width of the path to the width, call it Breadth = 15+2w
    calculate the area of the big rectangle (18+2w)(15+2w)
    subtract the inside rectangle
    (18+2w)(15+2w) - 18*15
    = 66w+4w^2

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