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What is the area of a square that has a perimeter of 12 feet?

    The area of a square is ##9## sq.feet

    The perimeter of the square wih side ##a## is ##4*a##

    The area of a square wih side ##a## is ##a^2##

    ##4*a=12 :.a=3 :. a^2=9##

    The area of the square is ##9## sq.feet [Ans]