A rectangular piece of paper is 19 cm long and 12 cm wide. Cut off the largest square, and what is the circumference of a small rectangle Such as the title, urgent

A rectangular piece of paper is 19 cm long and 12 cm wide. Cut off the largest square, and what is the circumference of a small rectangle Such as the title, urgent

The largest square must be the width of the paper, so the side length of the square is 12 cm, the length of the paper is 19 cm, minus 12 cm, then the width of the remaining rectangle is 7 cm, the original width of the paper becomes the current length, that is 12 cm, calculation method: (19-12) * 2 + 12 * 2 = 38