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17 September, 10:29

A 12' x 15' rectangular swimming pool has a 3 foot wide nonslip surface around it what is the outer perimeter of the no slip surface

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  1. 17 September, 11:11
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    Since the surface is 3 feet wide around the pool add 6 feet to both dimensions (3 feet x 2 = 6).

    12 ft + 6 ft. = 18 feet

    15 ft + 6ft. = 21 feet

    Perimeter = 2L + 2W

    Perimeter = 2 (18) + 2 (21)

    Perimeter = 36 + 42

    Perimeter = 78 feet.
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