Question
Download Solution PDF5 সেমি ব্যাসার্ধবিশিষ্ট একটি বৃত্তের 60° কোণ বিশিষ্ট একটি বৃত্তাংশের ক্ষেত্রফল (এক দশমিক স্থান পর্যন্ত সঠিক) কত?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFপ্রদত্ত:
বৃত্তের ব্যাসার্ধ = 5 সেমি
বৃত্তাংশের কেন্দ্রস্থ কোণ = 60°
অনুসৃত সূত্র:
বৃত্তাংশের ক্ষেত্রফল = (π × R2 × θ)/360°
গণনা:
বৃত্তাংশের ক্ষেত্রফল = (π × R2 × θ)/360°
⇒ (22/7) × (5)2 × 60°/360°
⇒ (22 × 25)/(7 × 6)
⇒ (11 × 25)/21 = 13.09 ≈ 13.1 সেমি2
∴ সঠিক উত্তর 13.1 সেমি2.
Last updated on Jul 12, 2025
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