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      Question

      The total surface area of a cube

      is given as 486 cm². What is the volume of the cube?
      A 529 cm³ Correct Answer Incorrect Answer
      B 629 cm³ Correct Answer Incorrect Answer
      C 729 cm³ Correct Answer Incorrect Answer
      D 429 cm³ Correct Answer Incorrect Answer

      Solution

      ATQ, Surface area of the cube = 6 X (edge)2 6 X (edge)2 = 486 Or, (edge)2 = 81 So, length of the edge of the cube = 9 cm So, volume of the cube = (edge)3 = 93 = 729 cm3

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