Question
Download Solution PDFশঙ্কুর উচ্চতা এবং তীর্যক উচ্চতা যথাক্রমে 20 সেমি এবং 25 সেমি, শঙ্কুর আয়তন নির্ণয় করুন।
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFপ্রদত্ত :
শঙ্কুর উচ্চতা = 20 সেমি
শঙ্কু এর তীর্যক উচ্চতা = 25 সেমি
সূত্র:
শঙ্কুর আয়তন = [1/3]πr2h
l2 = r2 + h2
গণনা:
প্রশ্ন অনুযায়ী
252 = r2 + 202
⇒ 625 = r2 + 400
⇒ r2 = 625 – 400
⇒ r2 = 225
⇒ r = 15
∴ শঙ্কুর আয়তন = [1/3] × π × 15 × 15 × 20 = 1500πLast updated on Jun 25, 2025
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