Question

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a sheet of paper rectangular in shape has dimension 22 cm into 10 cm this can be wrapped exactly once around the curved surface of a cylinder of the height 10 cm find the volume of the cylinder​

Answer 1

circumference of circle made by cylinder=2πr

and,

2πr = 22cm

then, r = 22*7/22†2

then, r = 7/2

by this we can find the volume of cylinder

that is ,πr²h

22/7*7/2*7/2*10 cm³

385 cm³

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