Since its a square, you know all four sides are of equal length. Therefore, to find the length of side s, you divide 12 by 4.
s=12/4=3
The area of a square is A=s2 or A=s*s. So the area of this square is:
A=(3)2=3*3=9
The unit for Area is (length)2. Your answer is 9 ft2.
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The area of a square with a perimeter of 12 feet is: 9 square feet.
perimeter of a square = 4 * root of the area. Perimeter = 4 * root 25 = 4 * 5 = 20 ft
Possibly 2 feet by 12 feet
Perimeter=28 ft Area=49 square ft
Perimeter of the square: 4*9 = 36 feet