1.

The interior of building is in the form of a right circular cylinder of radius 7m and height 6m, surmounted by a right circular cone of same radius and of vertical angle 60∘. Find the cost of painting the building from inside at the rate of Rs 30 per m2

Answer»

The interior of building is in the form of a right circular cylinder of radius 7m and height 6m, surmounted by a right circular cone of same radius and of vertical angle 60∘. Find the cost of painting the building from inside at the rate of Rs 30 per m2





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