The side length of a piece of square paper is 12 cm. Cut a rectangle 4 cm long and 3 cm wide on one side of it (the sides of the rectangle are parallel to the sides of the square respectively). How many centimeters is the perimeter of the remaining figure after cutting? Thank you

Change only two edges, one becomes 12-4, one becomes 12-3
At the same time, there are two more sides, one 4 and one 3
Perimeter 12 + 12 + 12-4 + 12-3 + 4 + 3 = 48
If you draw it, you will find that the circumference has not changed

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