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If the radius of the base of a cone is h...

If the radius of the base of a cone is halved, keeping the height same, what is the ratio of the volume of the reduced cone to that of the original cone?

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MODERN PUBLICATION-SURFACE AREAS AND VOLUMES-EXERCISE
  1. The ratio of volumes of two cones is 4:5 and the ratio of the radii of...

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  2. The radius and the height of a right circular cone are in the ratio 5 ...

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  3. If the radius of the base of a cone is halved, keeping the height same...

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  4. Find the weight of a solid cone whose base is of diameter 14 cm and ve...

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  5. A right angled triangle of which the sides containing the right angle ...

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  6. A tent is in the form of right circular cone of height 6m , the diamet...

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  7. A right circular cone is 3.6 cm high and the radius of its base is 1.6...

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  8. A conical vessel whose internal radius is 5 cm and height of 24 cm is ...

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  9. An iron pillar consists of a cylindricla portion 2.8 m high and 20 m i...

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  10. From a solid right circular cylinder with height 10 cm and radius of t...

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  11. Water flows a the rate of 10 metres per minute through a cylindrical p...

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  12. A rocket is in the form of a circular cylinder closed at the lower end...

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  13. Find the surface area of the sphere of radius: 10.5 cm

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  14. Find the surface area of the sphere of radius: 5 cm?

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  15. Find the surface area of a sphere of diameter 14 cm?

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  16. Assume pi = (22)/( 7) , unless stated otherwise . Find the surface ...

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  17. Find the curved surface area and total surface area of hemisphere of r...

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  18. The surface area of a sphere is 5544cm^2 find diameter.

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  19. The diameter of the moon is approximately one fourth the diamter of th...

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

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