8.  The lateral surface area of a hollow cylinder is 4224 cm^{2}. It is cut along its height and formed a rectangular sheet of width 33 cm. Find the perimeter of rectangular sheet?

Answers (1)

Lenght of rectangular sheet 

                                             = \frac{4224}{33} = 128\ cm

So perimeter of rectangular sheet = 2(l + b)

                                                      = 2(128 + 33) = 322\ cm.

Thus perimeter of rectangular sheet is 322 cm.

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