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1.

  • A. 3
  • B. 3
  • C. 3
  • D. 3

Answer: Option C

Explanation:

আমরা জানি,

ঘনকের কর্ণ = ✓3a

∴ " দুটি কর্ণ = 2✓3.a

= 2✓3×4 [∵a = 4]

= 8✓3

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