In Figure, there are three semicircles, ...

In Figure, there are three semicircles, A, B and C having diameter 3cm each, and another semicircle E having a circle D with diameter 4.5cm are shown. Calculate: (i)the area of the shaded region. (ii)the cost of painting the shaded region at the rate of 25 paise per `c m^2` , to the nearest rupee.

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