Answers

2016-01-12T19:04:00+05:30
We know that LSA or CSA of cylinder is 2πrh
now, given h= 5cm and LSA = 94.2cm² 
2πrh = 94.2 cm² = 2×3.14×r×5cm
                           =31.4×r
now r = 94.2/31.4 = 3
to find volume of the given cylinder. Vol. of cylinder = πr²h
             = 3.14×3×3×5
             = 141.3 
∴ Volume of the given cylinder = 141.3 cm³
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