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প্রদত্ত ত্রিভুজে, O হল অন্তঃকেন্দ্র, AE = 4 সেমি, AC = 9 সেমি এবং BC = 10 সেমি। AB বাহুর দৈর্ঘ্য কত?

19.11.2018.002

  1. 12 সেমি
  2. 8 সেমি
  3. 10 সেমি
  4. 14 সেমি

Answer (Detailed Solution Below)

Option 2 : 8 সেমি

Detailed Solution

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∵ AE + EC = AC

⇒ EC = 5 সেমি

কোণ দ্বিখণ্ডকের উপপাদ্য অনুসারে,

অতএব, AE/EC = AB/BC

⇒ 4/5 = AB/10

∴ AB = 8 সেমি

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