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      Question

      A cuboid has volume 960 cm┬│. Its length is 20 cm and

      breadth is 8 cm. What is its total surface area?
      A 525 cm┬▓ Correct Answer Incorrect Answer
      B 625 cm┬▓ Correct Answer Incorrect Answer
      C 656 cm┬▓ Correct Answer Incorrect Answer
      D 700 cm┬▓ Correct Answer Incorrect Answer

      Solution

      Height = Volume / (l x b) = 960 / (20 x 8) = 960 / 160 = 6 cm TSA = 2(lb + bh + hl) = 2(20 x 8 + 8 x 6 + 6 x 20) = 2(160 + 48 + 120) = 2 x 328 = 656 cm┬▓

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