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If diameter of a sphere is decreased by 25% then what percent does its curved surface area decrease ?

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MBD-Surface Areas and Volumes-Exercise
  1. Match the following : .

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  2. Find x+y+z

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  3. If diameter of a sphere is decreased by 25% then what percent does its...

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  4. Sameera wants to celebrate the fifth birthday of her daughter with a p...

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  5. The surface area of a cuboid is

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  6. The surface area of a cube if its edge is a is?

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  7. The length, breadth and height of a room is 5m, 4m and 3m. The cost of...

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  8. The floor of a rectangular hall has a perimeter 250 m. If the cost of ...

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  9. The breadth of a room is twice its height and is half of its length. T...

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  10. The area of three adjacent faces of a cube is x, y and z. Its volume V...

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  11. Two cubes each of edge 12 cm are joined. The surface area of new cuboi...

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  12. The curved surface area of a cylinder of height h and base radius r :

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  13. The total surface area of a cylinder of base radius r and height h is ...

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  14. The curved surface area of a cylinder of height 14 cm Is 88 cm^2. The ...

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  15. It is required to make a closed cylindrical tank of height 1 m and bas...

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  16. A metal pipe is 77 cm long. The inner diameter of a cross section is 4...

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  17. The diameter of a roller is 84 cm and its length is 120 cm. It takes 5...

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  18. A cylindrical pillar is 50 cm in diameter and 3.5 m in height. Find th...

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  19. The inner diameter of a circular well is 3.5 m. It is 10 m deep. Find ...

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  20. In a hot water heating system, there is a cylindrical pipe of length 2...

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