Q. 173.8( 12 Votes )

Answer :

Given radius of hemisphere & cylindrical (r)

=7 cm

Given total height of vessel = 13 cm

∴ (h +r) = 13 cm

Inner surface area of vessel = 2π r (h +r)

= 2 ×π × 7 (13)

= 182π

=575 cm^{2}

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