Question

a sheet measuring 44m×11 m is folded along its lenth 44m to form a cylinder .find the radius of this cylinder​

Answer 1

Given that a sheet measuring 44 m x 11 m is folded long its length

=>Circumference of the cylinder so, formed will be the length if the sheet.

But given length of the sheet =44 m.

we know that, if r is the radius of the cylinder, then circumference of the cylinder is given by

$2\pi \: r = 44 \\ \\ = > r = \frac{22}{\pi} (considering \: \pi = \frac{22}{7} ) \\ \\ = > r = 7m(approximately) \\ \\ thus \: radius \: \: of \: the \: cylinder = 7m$

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