Math, asked by biplabbarman99x, 4 months ago

একটি ধাতব ফাঁপা গােলকের উপরিতলের
ধাতুর ঘনত্ব 4.5 গ্রাম প্রতি ঘনসেমি। যদি ফাঁপা গােলকের বহিঃব্যাসার্ধ ও অন্তর্ব্যাসার্ধ যথাক্রমে
9cm ও 8cm হয়, তবে ফাঁপা গােলকের ওজন কত?

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Answered by barani79530

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