Question
Download Solution PDF5 সেমি দৈর্ঘ্য, 10 সেমি প্রস্থ এবং 15 সেমি উচ্চতার একটি বাক্স তৈরি করতে কত ক্ষেত্রফলের প্লাস্টিকের শীট প্রয়োজন?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFপ্রদত্ত:
দৈর্ঘ্য (l) = 5 সেমি
প্রস্থ (b) = 10 সেমি
উচ্চতা (h) = 15 সেমি
অনুসৃত সূত্র:
একটি বাক্সের পৃষ্ঠতলের ক্ষেত্রফল (SA) = 2(lb + bh + hl)
গণনা:
SA = 2 × (5 × 10 + 10 × 15 + 15 × 5)
⇒ SA = 2 × (50 + 150 + 75)
⇒ SA = 2 × 275
⇒ SA = 550 সেমি2
∴ সঠিক উত্তরটি হলো বিকল্প 1
Last updated on Jun 30, 2025
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