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The diagram below shows a model of a cylindrical water tank. The total surface area of the model is 0.4 #m^2# and the total surface area of the actual tank is 14.4 #m^2#.
(i) If the height of the tank is 2.1 m, find the height of the model.
(ii) If the capacity of the model is 23.15 litres, find the capacity of the tank to the nearest litre.