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What is the total surface area of a cuboid measuring 12 cm × 6 cm × 5 cm?

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Question: What is the total surface area of a cuboid measuring 12 cm × 6 cm × 5 cm?

  1. 325 cm²
  2. 323 cm²
  3. 324 cm²
  4. 326 cm²

Correct Answer: C — 324 cm²

Explanation: A cuboid’s total surface area is 2(lw + lh + wh).
Using the values in this question gives 324 cm² as the correct answer.

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