শঙ্কুর উচ্চতা এবং ব্যাসার্ধ হল যথাক্রমে 15 সেমি এবং 7 সেমি। শঙ্কুর আয়তন কত হবে?

  1. 550 ঘনসেমি 
  2. 660 ঘনসেমি
  3. 110 ঘনসেমি
  4. 770 ঘনসেমি

Answer (Detailed Solution Below)

Option 4 : 770 ঘনসেমি
Free
RRB NTPC Graduate Level Full Test - 01
100 Qs. 100 Marks 90 Mins

Detailed Solution

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প্রদত্ত :

শঙ্কুর উচ্চতা = 15 সেমি

শঙ্কুর ব্যাসার্ধ = 7 সেমি

সূত্র:

শঙ্কুর আয়তন = πr2h/3

গণনা:

শঙ্কুর আয়তন

⇒ [1/3] × π × r2 × h

⇒ [1/3] × [22/7] × 7 × 7 × 15

⇒ 22 × 7 × 5

⇒ 770 ঘনসেমি

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