A hemispherical dome of a Stupa needs to be painted. If the circumference of the base of the dome is 17.6 m, find the cost of painting it, given the cost of painting is र 5 per 100 cm².

The internal and external diameters of a hollow hemispherical vessel are 24 cm and 25 cm respectively. The cost to paint 1 sq. cm of surface is र 1.75. Find the total cost to the nearest rupee to paint the vessel all over. Ignore the area of the edge. (Take  = 3.14) 

109. The diameter of a sphere is decreased by 25%. By what percent will its curved surface area be decreased?    

A hemispherical dome of a building needs to be painted. If the area of the base is 24.64 m², find the cost of painting it, given the cost of painting is र 5 per 100 m².