Question
Download Solution PDFএকটি শঙ্কুর উচ্চতা এবং তির্যক উচ্চতা যথাক্রমে 3√23 সেমি এবং 16 সেমি। π এর মান আনুমানিক 22/7 ধরে, শঙ্কুটির বক্রতলের ক্ষেত্রফল নির্ণয় কর।
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDF⇒ একটি শঙ্কুর বক্রতলের ক্ষেত্রফলের সূত্র = πrl
যেখানে r হল ব্যাসার্ধ এবং l হল শঙ্কুর তির্যক উচ্চতা।
⇒ r = √(l 2 – h 2 )
⇒ r = √(256 – 207)
⇒ r = √49 = 7 সেমি
∴ শঙ্কুর বক্রতলের ক্ষেত্রফল = (22/7) × 7 × 16 = 352 সেমি 2Last updated on Jun 2, 2025
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