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ICSE Class 8 Answered

The total surface area of a solid cylinder is 462 cm^2 and its curved surface area is one-third of its total surface area. Find the volume of the cylinder. 
Asked by Cl_narayan | 31 Aug, 2019, 04:36: PM
answered-by-expert Expert Answer
TSA equals 462 space cm squared
2 πr squared plus CSA equals 462

CSA space equals space 2 πrh equals 1 third cross times 462 equals 154
so comma
2 πr squared plus 154 equals 462
straight r equals 7
straight h equals 7 over 2
Volume space equals space πr squared straight h equals 539 space cm squared
Answered by Arun | 31 Aug, 2019, 05:34: PM

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