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What is the perimeter of a square with side length 4 cm?

  1. 8 cm

  2. 16 cm

  3. 32 cm

  4. 64 cm

The correct answer is: 16 cm

A This is incorrect because it only accounts for one side of the square, but perimeter is the measurement around all sides. C: This is incorrect because it is double the perimeter of a square with a side length of 4 cm, meaning it would have to have a side length of 16 cm, which is not mentioned in the question. D: This is incorrect because it is four times the perimeter of a square with a side length of 4 cm, meaning it would have to have a side length of 16 cm, which is not mentioned in the question.