26 টি বাহু সম্পন্ন বহুভুজের মধ্যে কর্ণের সংখ্যা কত হবে?

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RRC Group D Previous Paper 7 (Held On: 25 Sep 2018 Shift 1)
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  1. 300
  2. 325
  3. 299
  4. 650

Answer (Detailed Solution Below)

Option 3 : 299
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⇒ n টি বাহু সম্পন্ন বহুভুজের মধ্যে কর্ণের সংখ্যা = {n(n – 3)}/2

⇒ 26 টি বাহু সম্পন্ন বহুভুজের মধ্যে কর্ণের সংখ্যা = {26(26 – 3)}/2 = 299
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