MathematicsThe total surface area of a cube is

The total surface area of a cube is


  1. A
    3a2
  2. B
    6a2
  3. C
    4a2
  4. D
    5a2  

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    Solution:

    We have to find the surface area of a cube.
    A cube has all edges of the same length.
    This means that each of the cube's six faces is a square.
    The total surface area is therefore six times the area of one face 6a2where a is the edge length of the cube.
    Hence, the total surface is 6a2.
    Therefore, option 2 is correct.
     

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