ΔABC তে, AB = 8 সেমি। ∠Aকে অভ্যন্তরীণভাবে দ্বিখণ্ডিত করে D বিন্দুতে  BC কে ছেদ করা হয় BD = 6 সেমি এবং DC = 7.5 সেমি। CA এর দৈর্ঘ্য কত?

This question was previously asked in
RRB ALP Previous Paper 5 (Held On: 10 Aug 2018 Shift 3)
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  1. 12 সেমি
  2. 12.5 সেমি
  3. 10.5 সেমি
  4. 10 সেমি

Answer (Detailed Solution Below)

Option 4 : 10 সেমি
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AB = 8 সেমি, ∠Aকে অভ্যন্তরীণভাবে দ্বিখণ্ডিত করে D বিন্দুতে  BC কে ছেদ করা হয়,

⇒ AB/AC = BD/CD

⇒ 8/AC = 6/7.5

∴ AC = 10 সেমি

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