The capacity of a closed cylindrical vessel of height 1 m is 15.4 liters. How many square meters of metal sheet would be needed to make it? (pi=22/7)

Height of the vessel = 1 m

Capacity of the vessel = 15.4 litres

Volume of the cylindrical vessel =

Metal sheet needed to make the cylindrical vessel.

= Total surface area of the cylindrical vessel.

= 2

r(r + h)

= 0.4708 m^{2}

Therefore, 0.4708 m^{2} of sheet will be required to make the vessel.