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The radius of a cone is reduced to half ...

The radius of a cone is reduced to half . What should be done to its slant height so that curved surface area remains unchanged .

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The correct Answer is:
Slant height must be doubled
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TARGET PUBLICATION-CHALLENGING QUESTIONS -SURFACE AREA AND VOLUME
  1. How many surfaces does a cone have ?

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  2. The radius and slant height of a cone are 4 cm and 25 cm respectively...

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  3. If the radius and the perpendicular height of a cone and cylinder is e...

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  4. The diameter of a sphere is 6 cm. Find the total surface area of the s...

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  5. The volume of a cube is 1, 000\ c m^3dot Find its total surface ...

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  6. If the edge of a cube is increased two times, then what will happen to...

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  7. Volume of a cuboid is 520 cm^(3) . The tength and breadth of the cubo...

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  8. 2 cubes, each of volume 125 cm^3, are joined end to end . Find the sur...

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  9. If the height and volume of a cylinder are 15 cm and 3000 cm^(3) resp...

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  10. Curved surface area of a cylinder is 8800 cm^(2) and the radius of it...

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  11. If the radius and height of a road roller are 0.5 m and 1.4 m respect...

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  12. The radius of base and perpendiular height of a cone are 12 cm and 1...

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  13. The total surface area of a cone is 704 cm^(2) and the radius of its...

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  14. The radius and slant height of a cone are 5 cm and 10 cm respectively...

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  15. The radius of a cone is reduced to half . What should be done to its ...

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  16. Find the volume of a sphere of radius 3.5cm(pi=3.14)

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  17. Find the radius of a hemisphere if its volume is 144picm^(3).

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  18. Is the following statement true or false. The radius of a sphere ...

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  19. If the radius of a sphere is equal to the diameter of a hemisphere. F...

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  20. The volume of a hemisphere is four times that of a sphere. Find the r...

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