Question

a rectangular sheet of length 33 cm and 11 cm each called along its length find total surface area of the cylinder formed

Answer 1

Given, length =33cm
Therefore, length =2 pi r=33cm
Height =11cm
Now total surface area=2 pi r h
=(33×11)cm
=363cm ^2

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Answer 2

Height =33 cm & r=11/2
Surface area of cylinder =2pie r(r+h)
=2*22/7*11/2(11/2+33)
=1331 cm^2

And calculation is in pic.

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