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Verified Answer :

Nirina7

the answer is
(a−b)²+b²/a²


proof

if A is the area of the
inner squared, so A= c², and c²= (a−b)²+b²

so the side of the outer must be a-b +b=a, its area is a²

Musicofabluerose

Answer: I just did the quiz in Plato the answer will be option A or (a-b) 2+b2/a2

Step-by-step explanation:

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