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Two identical solid cubes of side a are joined end to end. Then the total surface area of the resulting cuboid is
  • a)
    12a2
  • b)
    10a2
  • c)
    8a2
  • d)
    11a2
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
Two identical solid cubes of side a are joined end to end. Then the to...
Answer: (b) 10a2
Explanation:
The total surface area of a cube having side a = 6a2
If two identical faces of side a are joined together, then the total surface area of the cuboid so formed is 10a2.
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