Q. 134.2( 6 Votes )

Answer :

Radius of the hemispherical part of the hollow cylinder =

Hollow cylinder and the hemisphere have the same base

∴ Radius of the cylinder =

Depth of the cylinder, h =

Volume of the vessel = Volume of cylindrical part + Volume of the hemispherical part

≈ 56.15 m^{3}

Internal surface area of the vessel = CSA of (cylinder + hemisphere)

= 2πrh + 2π r^{2}

= 2π r(h+r)

= 70.58 m^{2}

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