The square was divided into two equal rectangles, respectively, the segment that is common to both rectangles passes through the middle of the side of the square.
The side of the square is 6 centimeters.
Accordingly, we have two absolutely equal rectangles with sides of 6 cm and 3 cm.
Find the perimeter of one of the rectangles and multiply the resulting value by two.
P = (3 + 6) * 2 = 18 cm.
Then the sum of the perimeters of the rectangles is 2 * 18 = 36 cm.
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