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What is the volume of an article which is made by digging out a hemisphere from each end of a solid cylinder?(a) πr^2h + 2(2πr^3)(b) 2πrh – 2(πr^2)(c) 2πrh + 2(\(\frac {2}{3}\) πr^2)(d) πr^2h – 2(\(\frac {2}{3}\)πr^3)I have been asked this question during an interview.This intriguing question originated from Surface Area and Volume of Combination of Solids in chapter Surface Area and Volumes of Mathematics – Class 10 |
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Answer» CORRECT choice is (d) πr^2h – 2(\(\FRAC {2}{3}\)πr^3) For explanation: VOLUME of the article = volume of the CYLINDER – 2(volume of the hemisphere) = πr^2h – 2(\(\frac {2}{3}\)πr^3) |
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