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A dome of a building is in the form of a hemisphere. From inside, it was white-washed at the cost of \(Rs. 498.960\). If the cost of white-washing is \(Rs20\) per square meter, find the
(i) inside surface area of the dome \(=\)
(ii) volume of the air inside the dome \(=\)
Answer variants:
\(320.26 m^2\)
\(285.6 m^3\)
\(824.56 m^2\)
\(624.5 m^3\)
\(523.9 m^3\)
\(249.48 m^2\)
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