What is the perimeter of a 20 cm by 13 cm rectangle?

Question: What is the perimeter of a 20 cm by 13 cm rectangle?

  1. 67 cm
  2. 65 cm
  3. 66 cm
  4. 68 cm

Correct Answer: C — 66 cm

Explanation: A rectangle’s perimeter equals twice the sum of length and width.
Using the values in this question gives 66 cm as the correct answer.

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