ΔABC இல், ∠B மற்றும் ∠C இன் இருசமவெட்டிகள் முக்கோணத்தின் உள்ளே புள்ளி O இல் சந்திக்கின்றன. ∠BOC = 122° எனில், ∠A இன் அளவு:

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SSC CGL Previous Paper 43 (Held On: 4 June 2019 Shift 1)
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  1. 72°
  2. 64°
  3. 62°
  4. 68°

Answer (Detailed Solution Below)

Option 2 : 64°
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Detailed Solution

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F1 V.G Deepak 07.10.2019 D4

நாம் அறிந்தபடி,

⇒ ∠BOC = 90 + ∠A/2

⇒ 122° = 90° + ∠A/2

⇒ ∠A = 64°

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