A hemispherical vessel is made of silver, 0.4 \(cm\) thick. If the inner radius of the bowl is 10 \(cm\), find the inner and outer curved surface area of the bowl. \([\)Use \(\pi = 3.143]\)
(i) Inner curved surface area of the bowl \(=\) \(cm^2\)
(ii) Outer curved surface area of the bowl \(=\) \(cm^2\)
[Note: Round off your answer up to two decimal places]
Answer variants:
6798.94
62.86
628.6
67.989
6286
679.894