पूर्ण सिलिंडर (r=6,h=8 cm) मध्ये समान r,h चा घन शंकू असतो. त्याचे पाणी एका सिलेंडरमध्ये घाला r=4 cm. नवीन खोली?
A12 cm
B8 cm
C6 cm
D18 cm
Answer & Solution
Correct answer: A. 12 cm
पाण्याचे प्रमाण π×6²×8 − आहे
(1/3)π×6²×8 = 192π सेमी ³;
पायाच्या क्षेत्रफळानुसार भागाकार केल्याने 16π खोली मिळते 12 cm.
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