14. Find the cost of glazing

The building of a business tower is in the form of a cube surmounted by a hemisphere. Suppose the side of a cube is \(70\) \(m\). The engineer plans to do glass glazing work. If the cost of glazing is 10 rupees per 90 square metres, then find the total cost of glazing.

 

Answer:

 

The total cost of glazing is  rupees.