alleryहें नांव. पुराय सिलेंडरांत (r=6,h=8 सेंमी.) त्याच r,h चो घन शंकू आसता. ताचें उदक r=4 सेंमी. नवी खोलाय?
A12 cm
B8 cm
C6 cm
D18 cm
Answer & Solution
Correct answer: A. 12 cm
हें .
उदकाचें प्रमाण π×6²×8 − आसा.
(1/3)π×6²×8 = 192π सेंमी ³;
मुळाव्या क्षेत्रफळान 16π भाग केल्यार खोलाय 12 cm मेळटा.
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