A inner curved surface area of a hemispherical dome of a building needs to be painted. If the circumference of the base is 17.6m, find the cost of painting it at the rate of Rs 5 per sq.m.

The hemispherical dome of a building needs to be painted (see fig 1). If the circumference of the base of dome is 17.6 m, find the cost of painting it, given the cost of painting is Rs. Per 100 cm ^(2)

A cubical container of side 6.5 m is to be painted on the entire outer surface. Find the area to be painted and the total cost of painting it at the rate of ₹ 24 per m^(2) .

The slant height of a frustum of a cone is 4 m and the perimeter of circular ends are 18 m and 16 m. Find the cost of painting its curved surface area at Rs 100 per sq. m.

A round table top has six equal designs as shown in the figure. If the radius of the table top is 14cm , find the cost of making the designs with paint at the rate of rs 5 Per cm^(2) ( use sqrt(3)=1.732)

If the curved surface area of a solid hemisphere is 2772 sq. cm , find its total surface area .