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A dome of a building is in the form of a...

A dome of a building is in the form of a hemisphere. From inside, it was white ¬ washed at the cost of Rs 498.96. If the cost of white-washing is at the rate of Rs 2.00 per square metre, find the inner surface area of the dome.

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A dome of a building is in the form of a hemisphere. From inside, it was white ¬ washed at the cost of Rs 498.96. If the cost of white-washing is at the rate of Rs 2.00 per square metre, find the volume of the air inside the dome.

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PSEB-SURFACE AREAS AND VOLUMES-EXAMPLE
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  5. The curved surface area of a right circular cone of slant height 10 cm...

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  6. The height of a cone is 16 cm and its base radius is 12 cm. Find the c...

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  7. A corn cob (see Fig. 13.17), shaped somewhat like a cone, has the radi...

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  8. Find the surface area of a sphere of radius 7 cm.

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  9. The surface area of a sphere is 5544 cm^2. Find its diameter.

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  10. The hollow sphere, in which the circus motorcyclist performs his stunt...

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  11. A hemispherical dome of a building needs to be painted (see Fig. 13.21...

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  12. A wall of length 10 m was to be built across an open ground. The heigh...

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  13. A child playing with building blocks, which are of the shape of cubes,...

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  14. The pillars of a temple are cylindrically shaped (see Fig. 13.26). If ...

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  15. At a Ramzan Mela, a stall keeper in one of the food stalls has a large...

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  16. The height and the slant height of a cone are 21 cm and 28 cm respecti...

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  17. Monica has a piece of canvas whose area is 551 m^2 . She uses it to ha...

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  18. Find the volume of a sphere of radius 11.2 cm.

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  19. A shot-putt is a metallic sphere of radius 4.9 cm. If the density of t...

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  20. A hemispherical bowl has a radius of 3.5 cm. What would be the volume ...

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