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If the length of each side of a cube is doubled then how many times does its surface area become?
  • a)
    4 times
  • b)
    8 times
  • c)
    16 times
  • d)
    None of these
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
If the length of each side of a cube is doubled then how many times do...
Let the length of cube = a.
Surface area = 6a2.
∴ Length of cube = 2a.
Surface area = 6(2a)2 = 6 × 4a2 = 24a2  
= 4 × 6a2
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Most Upvoted Answer
If the length of each side of a cube is doubled then how many times do...
Let the length of cube = a.
Surface area = 6a2.
∴ Length of cube = 2a.
Surface area = 6(2a)2 = 6 × 4a2 = 24a2  
= 4 × 6a2
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Community Answer
If the length of each side of a cube is doubled then how many times do...
Let the length of side of a cube be x cm.
another side of cube be 2x cm.
surface area of cube=6s2=A1
Surface area of cube=2x2=A2
thus is became 4times the surface area of cube.
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