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If the big square is 20 ft on each side the perimeter is 4*20 = 80 ft.

The small square is one-fifth of the bigger square so each side will be 20/5 = 4 ft.

The small square perimeter will be 4*4 = 16 ft.

Combined perimeter = 80 +16 = 96 ft.

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14y ago

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