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As shown in the figure, the circumference of the square tongs is 4 cm more than that of the equilateral triangle. What are the perimeters of squares and equilateral triangles?
According to the meaning of the question,

4x-3x=4

? x=4

Circumference of a square: 4×4= 16 (cm)

Circumference of triangle: 4×3= 12 (cm)

Answer: The perimeter of a square is 16 cm, and the perimeter of an equilateral triangle is 12 cm.