Question
The figure is formed by 7 identical squares with 4 similar semi-circles cut out from it. Each square has a side of 32 cm. Find the perimeter of the shaded figure. Express your answer in terms of π.
2 m

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The figure is formed by 7 identical squares with 4 similar semi-circles cut out from it. Each square has a side of 32 cm. Find the perimeter of the shaded figure. Express your answer in terms of π.