Answers

2016-04-18T16:51:11+05:30
Length of the paper = 44 m
breadth  = 20m

now it is rolled along its length

so the circumference = 44m
and height of the cylinder will be 20 m

we have to find r 
2πr = 44
r = 44/2 × 7/22
r = 7 m

volume of cylinder = πr²h
                                = 22/7 × 7 × 7 × 20
                               = 3080 m³
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2016-04-18T17:28:19+05:30
Length = 44m
Breadth = 20m
 Circumference = 44m
2*22/7*r = 44
44/7 *r = 44
44r = 7*44
r = 7*44/44
r = 7
22/7*7*7*20 = 3080

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