ΔABCలో, O అనేది త్రిభుజం యొక్క మధ్య బిందువు మరియు ∠BOC = 60°, అప్పుడు ∠BAC విలువ ఏమిటి?

  1. 90 °
  2. 30 °
  3. 60 °
  4. 45 °

Answer (Detailed Solution Below)

Option 2 : 30 °
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Detailed Solution

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ఇచ్చినది:

O అనేది మధ్య బిందువు

∠BOC = 60 °

ఉపయోగించిన ఫార్ములా:

మధ్యలో ఉన్న కోణం వృత్తం వద్ద ఉన్న కోణానికి రెట్టింపు

లెక్కింపు:

quesImage4302

∠BOC = 2 × ∠BAC

⇒ 60° = 2 × ∠BAC

⇒ ∠BAC = 30° 

∴ ∠BAC is 30°

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