Question

In a rectangular paper, its length is 44 cm and the breadth is 7 cm. By rolling the paper from its length, an open cylinder is formed. If a closed cylinder is taken of the same size, then find its total surface area.

Answer 1

Answer:

315.7 cm square

Step-by-step explanation:

when it is rolled from length , length becomes height and width become circumference

Answer 2

Answer:

Step-by-step explanation:

we know surface area of cylinder is 2π$r^{2}$h

so here h=44cm and

circumference when cylinder is made will be 2πr=7cm

so r=1.1cm

so next put that in formula ie surface area=2*22/7*(1.1*1.1)*44

so surface area= 334.65 cm sq

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