Question
Download Solution PDFΔABC இல், ∠B மற்றும் ∠C இன் உள் இருசமவெட்டிகள் O இல் சந்திக்கின்றன. ∠BAC = 72° என்றால், ∠BOC இன் மதிப்பு:
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFகணக்கீடு:
∠BAC = 72°
கோணத்தின் சொத்துத் தொகை மூலம்
கோணத்தின் இருசமவெட்டிகள் O இல் சந்திக்கின்றன
எனவே கோணத்தின் சொத்துத் தொகை மூலம்,
⇒ ∠OBC + ∠OCB + ∠BOC = 180
⇒ 54 + ∠BOC = 180
⇒ ∠BOC = 126
∴ சரியான பதில் 126°.
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