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The monument is in the form of a hemisphere mounted on the cuboid. The hemisphere is of radius 21 m and, the cuboid is of dimension 37 m \times 34 m \times 39 m. If the cost of painting the monument is ₹15 per metre square, find the total cost of painting the monument?
 
Answer:
 
The total cost of painting the monument = .
 
[Note: Use \pi = \frac{22}{7}.]
 
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