Answer :

Let the radius of the circular end be "r".

The volume of cylindrical vessel = 15.4 litres

1 litre = 1/1000 m^{3}

= 0.0154 m^{3}

r^{2}h = 0.0154 m^{3}

( ×r ×r × 1) m = 0.0154 m^{3}

r = 0.07 m

TSA of vessel = 2πr (r + h)

= 2 × × 0.07 (0.07 + 1)

= 0.44 × 1.07

= 0.4708 m^{2}

Height (h) of cylindrical vessel = 1 m

**Therefore, the metal sheet would be required to make the cylindrical vessel is 0.4708 m ^{2}**

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