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What is the total surface area of a cuboid measuring 7 cm × 13 cm × 5 cm?

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Question: What is the total surface area of a cuboid measuring 7 cm × 13 cm × 5 cm?

  1. 383 cm²
  2. 382 cm²
  3. 381 cm²
  4. 384 cm²

Correct Answer: B — 382 cm²

Explanation: A cuboid’s total surface area is 2(lw + lh + wh).
Using the values in this question gives 382 cm² as the correct answer.

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