Question
Download Solution PDFযদি একটি গোলকের ব্যাস 3.5 সেমি হয়, তাহলে গোলকের মোট পৃষ্ঠতলের ক্ষেত্রফল কত হবে?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFপ্রদত্ত:
একটি গোলকের ব্যাস 3.5 সেমি।
অনুসৃত ধারণা:
মোট পৃষ্ঠতলের ক্ষেত্রফল = 4πr2
এখানে, r = ব্যাসার্ধ
গণনা:
মোট পৃষ্ঠতলের ক্ষেত্রফল = 4 × 22/7 × (3.5/2)2
⇒ 4 × 22/7 × 12.25/4
⇒ 22/7 × 12.25
⇒ 38.5
∴ গোলকের মোট পৃষ্ঠতলের ক্ষেত্রফল হল 38.5 সেমি2।
Last updated on Jul 12, 2025
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