What is the area of the remaining area if the square shaped field of 20 meters side is 1 meter wide on all four sides? What equivalents are used in solving?
a)(a + b)^2
b)(a-b)^2
c)a²-b²
d)(a-b)^2
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option a) (a+b)^2
i am sure
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question is : What is the area of the remaining area if the square shaped field of 20 meters side is 1 meter wide on all four sides? What equivalents are used in solving?
the answer is : (a + b)^2
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