A large square is made by arranging a small square surrounded by four congruent rectangles as shown in Fig. 9.53. If the perimeter of each of the rectangle is 16 cm, find the area of the small square.
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Perimeter of one rectangle = 16 cm²
2(l+b) = 16
(l+b) = 8 cm
area = (side)² = (l+b)² = (8)²= 64 cm²
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