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The interior of a building is in the form of a righth circular cylinder of diameter 4.2\( \mathrm { m } \) and heighth 4\( \mathrm { m } \) . sumounted by a cone. The vertical height of the cone is 2\( \cdot 1 \mathrm { m } \) . Find the outer surface area and volume of the building. (Take \( \pi = 22 / 7 \)

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