முழு உருளையில் (r=6,h=8 cm) அதே r,h இன் திடமான கூம்பு உள்ளது. அதன் தண்ணீரை ஒரு உருளையில் ஊற்றவும் r=4 cm. புதிய ஆழம்?
A12 cm
B8 cm
C6 cm
D18 cm
Answer & Solution
Correct answer: A. 12 cm
நீரின் அளவு π×6²×8 −
(1/3)π×6²×8 = 192π cm ³;
அடிப்பகுதி 16πஆல் வகுத்தால் ஆழம் 12 cm.
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