12 1 1 A 7 m long cylindrical wire has a radius of 6\( \mathrm { mm } \) . Find the curved surface area of the wire The capacity of a closed cylindrical vessel of height 1\( \mathrm { m } \) is 15.4 l. How many sq m of metal shee would be needed to make it?

Question

12 1 1 A 7 m long cylindrical wire has a radius of 6\( \mathrm { mm } \) . Find the curved surface area of the wire The capacity of a closed cylindrical vessel of height 1\( \mathrm { m } \) is 15.4 l. How many sq m of metal shee would be needed to make it?

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